11547507578620 has 48 divisors (see below), whose sum is σ = 26208069104448. Its totient is φ = 4248521786880.

The previous prime is 11547507578597. The next prime is 11547507578647. The reversal of 11547507578620 is 2687570574511.

It is a super-2 number, since 2×11547507578620² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78954504 + ... + 79100623.

It is an arithmetic number, because the mean of its divisors is an integer number (546001439676).

Almost surely, 2^{11547507578620} is an apocalyptic number.

11547507578620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11547507578620 is an abundant number, since it is smaller than the sum of its proper divisors (14660561525828).

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

11547507578620 is a wasteful number, since it uses less digits than its factorization.

11547507578620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158055430 (or 158055428 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 58.

The spelling of 11547507578620 in words is "eleven trillion, five hundred forty-seven billion, five hundred seven million, five hundred seventy-eight thousand, six hundred twenty".