220667478669268 has 12 divisors (see below), whose sum is σ = 394384429962432. Its totient is φ = 107986212965720.

The previous prime is 220667478669259. The next prime is 220667478669269. The reversal of 220667478669268 is 862966874766022.

It is a super-2 number, since 2×220667478669268² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220667478669269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586881592018 + ... + 586881592393.

It is an arithmetic number, because the mean of its divisors is an integer number (32865369163536).

Almost surely, 2^{220667478669268} is an apocalyptic number.

It is an amenable number.

220667478669268 is a deficient number, since it is larger than the sum of its proper divisors (173716951293164).

220667478669268 is a wasteful number, since it uses less digits than its factorization.

220667478669268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173763184462 (or 1173763184460 counting only the distinct ones).

The product of its (nonzero) digits is 7023034368, while the sum is 79.

The spelling of 220667478669268 in words is "two hundred twenty trillion, six hundred sixty-seven billion, four hundred seventy-eight million, six hundred sixty-nine thousand, two hundred sixty-eight".