11507011506 has 12 divisors (see below), whose sum is σ = 24931858302. Its totient is φ = 3835670496.

The previous prime is 11507011499. The next prime is 11507011541. The reversal of 11507011506 is 60511070511.

It is a happy number.

11507011506 is a `hidden beast` number, since 1 + 1 + 507 + 0 + 1 + 150 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10486784025 + 1020227481 = 102405^2 + 31941^2 .

It is a super-2 number, since 2×11507011506² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11507011506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319639191 + ... + 319639226.

Almost surely, 2^11507011506 is an apocalyptic number.

11507011506 is an abundant number, since it is smaller than the sum of its proper divisors (13424846796).

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

11507011506 is a wasteful number, since it uses less digits than its factorization.

11507011506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639278425 (or 639278422 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The spelling of 11507011506 in words is "eleven billion, five hundred seven million, eleven thousand, five hundred six".