3158539956 has 324 divisors, whose sum is σ = 10091626636. Its totient is φ = 827228160.

The previous prime is 3158539949. The next prime is 3158539961. The reversal of 3158539956 is 6599358513.

It is a happy number.

3158539956 is a `hidden beast` number, since 3 + 1 + 58 + 539 + 9 + 56 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 3920400 + 3154619556 = 1980^2 + 56166^2 .

It is a super-3 number, since 3×3158539956³ (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 107 ways as a sum of consecutive naturals, for example, 16365396 + ... + 16365588.

Almost surely, 2^3158539956 is an apocalyptic number.

3158539956 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3158539956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5045813318).

3158539956 is an abundant number, since it is smaller than the sum of its proper divisors (6933086680).

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

3158539956 is a wasteful number, since it uses less digits than its factorization.

3158539956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 239 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 54.

The square root of 3158539956 is about 56200.8892812205. The cubic root of 3158539956 is about 1467.2207434325.

The spelling of 3158539956 in words is "three billion, one hundred fifty-eight million, five hundred thirty-nine thousand, nine hundred fifty-six".