65401664360 has 32 divisors (see below), whose sum is σ = 147253105440. Its totient is φ = 26143001664.

The previous prime is 65401664353. The next prime is 65401664371. The reversal of 65401664360 is 6346610456.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491942 + ... + 610581.

It is an arithmetic number, because the mean of its divisors is an integer number (4601659545).

Almost surely, 2^65401664360 is an apocalyptic number.

It is an amenable number.

65401664360 is an abundant number, since it is smaller than the sum of its proper divisors (81851441080).

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

65401664360 is a wasteful number, since it uses less digits than its factorization.

65401664360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104017 (or 1104013 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 65401664360 in words is "sixty-five billion, four hundred one million, six hundred sixty-four thousand, three hundred sixty".