2156013560 has 48 divisors (see below), whose sum is σ = 5071164840. Its totient is φ = 824901440.

The previous prime is 2156013533. The next prime is 2156013611. The reversal of 2156013560 is 653106512.

It is a super-3 number, since 3×2156013560³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29786 + ... + 72105.

Almost surely, 2^2156013560 is an apocalyptic number.

2156013560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2156013560 is an abundant number, since it is smaller than the sum of its proper divisors (2915151280).

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

2156013560 is a wasteful number, since it uses less digits than its factorization.

2156013560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101948 (or 101921 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2156013560 is about 46432.8930823829. The cubic root of 2156013560 is about 1291.8650905343.

The spelling of 2156013560 in words is "two billion, one hundred fifty-six million, thirteen thousand, five hundred sixty".