1656037464 has 32 divisors (see below), whose sum is σ = 4164894720. Its totient is φ = 548705696.

The previous prime is 1656037403. The next prime is 1656037499. The reversal of 1656037464 is 4647306561.

It is a congruent number.

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, 202584 + ... + 210599.

It is an arithmetic number, because the mean of its divisors is an integer number (130152960).

Almost surely, 2^1656037464 is an apocalyptic number.

It is an amenable number.

1656037464 is an abundant number, since it is smaller than the sum of its proper divisors (2508857256).

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

1656037464 is a wasteful number, since it uses less digits than its factorization.

1656037464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413359 (or 413355 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 1656037464 is about 40694.4402099353. The cubic root of 1656037464 is about 1183.1052616767.

The spelling of 1656037464 in words is "one billion, six hundred fifty-six million, thirty-seven thousand, four hundred sixty-four".