164599222788 has 864 divisors, whose sum is σ = 595094572800. Its totient is φ = 37797580800.

The previous prime is 164599222783. The next prime is 164599222811. The reversal of 164599222788 is 887222995461.

164599222788 is a `hidden beast` number, since 1 + 6 + 459 + 92 + 22 + 78 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (164599222783) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1696899156 + ... + 1696899252.

Almost surely, 2^164599222788 is an apocalyptic number.

164599222788 is a gapful number since it is divisible by the number (18) 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 164599222788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297547286400).

164599222788 is an abundant number, since it is smaller than the sum of its proper divisors (430495350012).

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

164599222788 is a wasteful number, since it uses less digits than its factorization.

164599222788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 164 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 164599222788 in words is "one hundred sixty-four billion, five hundred ninety-nine million, two hundred twenty-two thousand, seven hundred eighty-eight".