43664460456 has 32 divisors (see below), whose sum is σ = 109270700640. Its totient is φ = 14540213568.

The previous prime is 43664460449. The next prime is 43664460457. The reversal of 43664460456 is 65406446634.

It is not an unprimeable number, because it can be changed into a prime (43664460457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888486 + ... + 936341.

It is an arithmetic number, because the mean of its divisors is an integer number (3414709395).

Almost surely, 2^43664460456 is an apocalyptic number.

It is an amenable number.

43664460456 is an abundant number, since it is smaller than the sum of its proper divisors (65606240184).

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

43664460456 is a wasteful number, since it uses less digits than its factorization.

43664460456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825833 (or 1825829 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 43664460456 in words is "forty-three billion, six hundred sixty-four million, four hundred sixty thousand, four hundred fifty-six".