1600455664 has 20 divisors (see below), whose sum is σ = 3176515440. Its totient is φ = 780709760.

The previous prime is 1600455643. The next prime is 1600455679. The reversal of 1600455664 is 4665540061.

It is a super-2 number, since 2×1600455664² = 5122916664859361792, which contains 22 as substring.

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, 1219204 + ... + 1220515.

It is an arithmetic number, because the mean of its divisors is an integer number (158825772).

Almost surely, 2^1600455664 is an apocalyptic number.

It is an amenable number.

1600455664 is a deficient number, since it is larger than the sum of its proper divisors (1576059776).

1600455664 is a wasteful number, since it uses less digits than its factorization.

1600455664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439768 (or 2439762 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1600455664 is about 40005.6953945310. The cubic root of 1600455664 is about 1169.7181155482.

The spelling of 1600455664 in words is "one billion, six hundred million, four hundred fifty-five thousand, six hundred sixty-four".