168653216460 has 48 divisors (see below), whose sum is σ = 474867187200. Its totient is φ = 44722935744.

The previous prime is 168653216399. The next prime is 168653216461. The reversal of 168653216460 is 64612356861.

It is a super-2 number, since 2×168653216460² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168653216461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7840900 + ... + 7862379.

It is an arithmetic number, because the mean of its divisors is an integer number (9893066400).

Almost surely, 2^168653216460 is an apocalyptic number.

168653216460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168653216460 is an abundant number, since it is smaller than the sum of its proper divisors (306213970740).

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

168653216460 is a wasteful number, since it uses less digits than its factorization.

168653216460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15703470 (or 15703468 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 168653216460 in words is "one hundred sixty-eight billion, six hundred fifty-three million, two hundred sixteen thousand, four hundred sixty".