11612213525412 has 72 divisors (see below), whose sum is σ = 30636364744440. Its totient is φ = 3705078074880.

The previous prime is 11612213525383. The next prime is 11612213525531. The reversal of 11612213525412 is 21452531221611.

11612213525412 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 2 + 213 + 5 + 25 + 412 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1873657241856 + 9738556283556 = 1368816^2 + 3120666^2 .

It is a super-2 number, since 2×11612213525412² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74142087 + ... + 74298542.

It is an arithmetic number, because the mean of its divisors is an integer number (425505065895).

Almost surely, 2^{11612213525412} is an apocalyptic number.

11612213525412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11612213525412 is an abundant number, since it is smaller than the sum of its proper divisors (19024151219028).

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

11612213525412 is a wasteful number, since it uses less digits than its factorization.

11612213525412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148440733 (or 148440728 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 11612213525412 in words is "eleven trillion, six hundred twelve billion, two hundred thirteen million, five hundred twenty-five thousand, four hundred twelve".