65446745628 has 48 divisors (see below), whose sum is σ = 172336268160. Its totient is φ = 19148472000.

The previous prime is 65446745593. The next prime is 65446745647. The reversal of 65446745628 is 82654764456.

It is a super-2 number, since 2×65446745628² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8544598 + ... + 8552253.

It is an arithmetic number, because the mean of its divisors is an integer number (3590338920).

Almost surely, 2^65446745628 is an apocalyptic number.

It is an amenable number.

65446745628 is an abundant number, since it is smaller than the sum of its proper divisors (106889522532).

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

65446745628 is a wasteful number, since it uses less digits than its factorization.

65446745628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17096898 (or 17096896 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 57.

The spelling of 65446745628 in words is "sixty-five billion, four hundred forty-six million, seven hundred forty-five thousand, six hundred twenty-eight".