1158179680 has 72 divisors (see below), whose sum is σ = 3182947488. Its totient is φ = 397087488.

The previous prime is 1158179653. The next prime is 1158179681. The reversal of 1158179680 is 869718511.

It is a self number, because there is not a number n which added to its sum of digits gives 1158179680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158179681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66024 + ... + 81703.

It is an arithmetic number, because the mean of its divisors is an integer number (44207604).

Almost surely, 2^1158179680 is an apocalyptic number.

1158179680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158179680 is an abundant number, since it is smaller than the sum of its proper divisors (2024767808).

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

1158179680 is a wasteful number, since it uses less digits than its factorization.

1158179680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147756 (or 147741 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 46.

The square root of 1158179680 is about 34032.0390220745. The cubic root of 1158179680 is about 1050.1676769256.

The spelling of 1158179680 in words is "one billion, one hundred fifty-eight million, one hundred seventy-nine thousand, six hundred eighty".