11157440520 has 64 divisors (see below), whose sum is σ = 33817432320. Its totient is φ = 2944641024.

The previous prime is 11157440519. The next prime is 11157440533. The reversal of 11157440520 is 2504475111.

It is a super-5 number, since 5×11157440520⁵ (a number of 51 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 467632 + ... + 490911.

It is an arithmetic number, because the mean of its divisors is an integer number (528397380).

Almost surely, 2^11157440520 is an apocalyptic number.

11157440520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11157440520 is an abundant number, since it is smaller than the sum of its proper divisors (22659991800).

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

11157440520 is a wasteful number, since it uses less digits than its factorization.

11157440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958654 (or 958650 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The spelling of 11157440520 in words is "eleven billion, one hundred fifty-seven million, four hundred forty thousand, five hundred twenty".