1656371364 has 12 divisors (see below), whose sum is σ = 3864866544. Its totient is φ = 552123784.

The previous prime is 1656371347. The next prime is 1656371389. The reversal of 1656371364 is 4631736561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 69015462 + ... + 69015485.

It is an arithmetic number, because the mean of its divisors is an integer number (322072212).

Almost surely, 2^1656371364 is an apocalyptic number.

It is an amenable number.

1656371364 is an abundant number, since it is smaller than the sum of its proper divisors (2208495180).

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

1656371364 is a wasteful number, since it uses less digits than its factorization.

1656371364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138030954 (or 138030952 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 1656371364 is about 40698.5425291865. The cubic root of 1656371364 is about 1183.1847712104.

The spelling of 1656371364 in words is "one billion, six hundred fifty-six million, three hundred seventy-one thousand, three hundred sixty-four".