1156118970 has 64 divisors (see below), whose sum is σ = 2833818624. Its totient is φ = 301777920.

The previous prime is 1156118947. The next prime is 1156118987. The reversal of 1156118970 is 798116511.

It is a super-2 number, since 2×1156118970² = 2673222145587721800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406674 + ... + 409506.

It is an arithmetic number, because the mean of its divisors is an integer number (44278416).

Almost surely, 2^1156118970 is an apocalyptic number.

1156118970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156118970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416909312).

1156118970 is an abundant number, since it is smaller than the sum of its proper divisors (1677699654).

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

1156118970 is a wasteful number, since it uses less digits than its factorization.

1156118970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127.

The product of its (nonzero) digits is 15120, while the sum is 39.

The square root of 1156118970 is about 34001.7495138118. The cubic root of 1156118970 is about 1049.5444645291.

The spelling of 1156118970 in words is "one billion, one hundred fifty-six million, one hundred eighteen thousand, nine hundred seventy".