11620111520115 has 80 divisors (see below), whose sum is σ = 24840895546368. Its totient is φ = 5081092213824.

The previous prime is 11620111520089. The next prime is 11620111520137. The reversal of 11620111520115 is 51102511102611.

11620111520115 is a `hidden beast` number, since 1 + 1 + 6 + 20 + 1 + 1 + 1 + 520 + 115 = 666.

It is not a de Polignac number, because 11620111520115 - 2⁷ = 11620111519987 is a prime.

It is a super-2 number, since 2×11620111520115² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 89039247 + ... + 89169656.

Almost surely, 2^{11620111520115} is an apocalyptic number.

11620111520115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11620111520115 is an abundant number, since it is smaller than the sum of its proper divisors (13220784026253).

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

11620111520115 is a wasteful number, since it uses less digits than its factorization.

11620111520115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178208950 (or 178208941 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 27.

Adding to 11620111520115 its reverse (51102511102611), we get a palindrome (62722622622726).

The spelling of 11620111520115 in words is "eleven trillion, six hundred twenty billion, one hundred eleven million, five hundred twenty thousand, one hundred fifteen".