2159591514912 has 144 divisors (see below), whose sum is σ = 6841809669240. Its totient is φ = 641576226816.

The previous prime is 2159591514901. The next prime is 2159591514943. The reversal of 2159591514912 is 2194151959512.

2159591514912 is a `hidden beast` number, since 2 + 1 + 5 + 9 + 591 + 5 + 1 + 49 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 707556874896 + 1452034640016 = 841164^2 + 1205004^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×2159591514912² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9836493 + ... + 10053644.

Almost surely, 2^{2159591514912} is an apocalyptic number.

It is an amenable number.

2159591514912 is an abundant number, since it is smaller than the sum of its proper divisors (4682218154328).

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

2159591514912 is a wasteful number, since it uses less digits than its factorization.

2159591514912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890195 (or 19890184 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 54.

The spelling of 2159591514912 in words is "two trillion, one hundred fifty-nine billion, five hundred ninety-one million, five hundred fourteen thousand, nine hundred twelve".