216460929056 has 12 divisors (see below), whose sum is σ = 426157454142. Its totient is φ = 108230464512.

The previous prime is 216460929053. The next prime is 216460929073. The reversal of 216460929056 is 650929064612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 181970496400 + 34490432656 = 426580^2 + 185716^2 .

It is a super-2 number, since 2×216460929056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216460928995 and 216460929013.

It is not an unprimeable number, because it can be changed into a prime (216460929053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382201985 + ... + 3382202048.

Almost surely, 2^216460929056 is an apocalyptic number.

It is an amenable number.

216460929056 is a deficient number, since it is larger than the sum of its proper divisors (209696525086).

216460929056 is an equidigital number, since it uses as much as digits as its factorization.

216460929056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764404043 (or 6764404035 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 216460929056 in words is "two hundred sixteen billion, four hundred sixty million, nine hundred twenty-nine thousand, fifty-six".