662640537432 has 64 divisors (see below), whose sum is σ = 1660241214720. Its totient is φ = 220395385728.

The previous prime is 662640537401. The next prime is 662640537511. The reversal of 662640537432 is 234735046266.

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, 21550053 + ... + 21580779.

It is an arithmetic number, because the mean of its divisors is an integer number (25941268980).

Almost surely, 2^662640537432 is an apocalyptic number.

It is an amenable number.

662640537432 is an abundant number, since it is smaller than the sum of its proper divisors (997600677288).

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

662640537432 is a wasteful number, since it uses less digits than its factorization.

662640537432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32680 (or 32676 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 48.

The spelling of 662640537432 in words is "six hundred sixty-two billion, six hundred forty million, five hundred thirty-seven thousand, four hundred thirty-two".