65477632444 has 12 divisors (see below), whose sum is σ = 130955264944. Its totient is φ = 28061842464.

The previous prime is 65477632433. The next prime is 65477632457. The reversal of 65477632444 is 44423677456.

65477632444 is an admirable number.

It is a super-2 number, since 2×65477632444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65477632391 and 65477632400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169243409 + ... + 1169243464.

Almost surely, 2^65477632444 is an apocalyptic number.

It is an amenable number.

65477632444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65477632444 is a wasteful number, since it uses less digits than its factorization.

65477632444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338486884 (or 2338486882 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 52.

The spelling of 65477632444 in words is "sixty-five billion, four hundred seventy-seven million, six hundred thirty-two thousand, four hundred forty-four".