222197840356464 has 320 divisors, whose sum is σ = 768348604288000. Its totient is φ = 60058936304640.

The previous prime is 222197840356451. The next prime is 222197840356469. The reversal of 222197840356464 is 464653048791222.

222197840356464 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 9 + 7 + 8 + 4 + 0 + 3 + 564 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222197840356469) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38009034 + ... + 43463574.

It is an arithmetic number, because the mean of its divisors is an integer number (2401089388400).

It is a 2-persistent number, because it is pandigital, and so is 2⋅222197840356464 = 444395680712928, but 3⋅222197840356464 = 666593521069392 is not.

Almost surely, 2^{222197840356464} is an apocalyptic number.

222197840356464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222197840356464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384174302144000).

222197840356464 is an abundant number, since it is smaller than the sum of its proper divisors (546150763931536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222197840356464 is a wasteful number, since it uses less digits than its factorization.

222197840356464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455293 (or 5455281 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 222197840356464 in words is "two hundred twenty-two trillion, one hundred ninety-seven billion, eight hundred forty million, three hundred fifty-six thousand, four hundred sixty-four".