6156801531 has 72 divisors (see below), whose sum is σ = 9628924032. Its totient is φ = 3784320000.

The previous prime is 6156801523. The next prime is 6156801559. The reversal of 6156801531 is 1351086516.

6156801531 is a `hidden beast` number, since 61 + 5 + 68 + 0 + 1 + 531 = 666.

It is not a de Polignac number, because 6156801531 - 2³ = 6156801523 is a prime.

It is a super-2 number, since 2×6156801531² = 75812410184247887922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6156801031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 60958381 + ... + 60958481.

It is an arithmetic number, because the mean of its divisors is an integer number (133735056).

Almost surely, 2^6156801531 is an apocalyptic number.

6156801531 is a deficient number, since it is larger than the sum of its proper divisors (3472122501).

6156801531 is a wasteful number, since it uses less digits than its factorization.

6156801531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 6156801531 is about 78465.2887014379. The cubic root of 6156801531 is about 1832.8139624738.

The spelling of 6156801531 in words is "six billion, one hundred fifty-six million, eight hundred one thousand, five hundred thirty-one".