1556532960 has 48 divisors (see below), whose sum is σ = 4903080336. Its totient is φ = 415075328.

The previous prime is 1556532893. The next prime is 1556533009. The reversal of 1556532960 is 692356551.

It is a tau number, because it is divible by the number of its divisors (48).

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

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, 1620909 + ... + 1621868.

It is an arithmetic number, because the mean of its divisors is an integer number (102147507).

Almost surely, 2^1556532960 is an apocalyptic number.

1556532960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1556532960 is an abundant number, since it is smaller than the sum of its proper divisors (3346547376).

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

1556532960 is a wasteful number, since it uses less digits than its factorization.

1556532960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242795 (or 3242787 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 42.

The square root of 1556532960 is about 39452.9208044221. The cubic root of 1556532960 is about 1158.9181749068.

The spelling of 1556532960 in words is "one billion, five hundred fifty-six million, five hundred thirty-two thousand, nine hundred sixty".