1601632556 has 24 divisors (see below), whose sum is σ = 2846306400. Its totient is φ = 788441472.

The previous prime is 1601632547. The next prime is 1601632573. The reversal of 1601632556 is 6552361061.

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, 170330 + ... + 179486.

It is an arithmetic number, because the mean of its divisors is an integer number (118596100).

Almost surely, 2^1601632556 is an apocalyptic number.

It is an amenable number.

1601632556 is a deficient number, since it is larger than the sum of its proper divisors (1244673844).

1601632556 is a wasteful number, since it uses less digits than its factorization.

1601632556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833 (or 9831 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1601632556 is about 40020.4017471089. The cubic root of 1601632556 is about 1170.0047619550.

The spelling of 1601632556 in words is "one billion, six hundred one million, six hundred thirty-two thousand, five hundred fifty-six".