5611371556 has 24 divisors (see below), whose sum is σ = 11311118336. Its totient is φ = 2385936000.

The previous prime is 5611371547. The next prime is 5611371583. The reversal of 5611371556 is 6551731165.

It is a happy number.

It is a super-2 number, since 2×5611371556² = 62974981478971722272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785445 + ... + 792556.

Almost surely, 2^5611371556 is an apocalyptic number.

It is an amenable number.

5611371556 is an abundant number, since it is smaller than the sum of its proper divisors (5699746780).

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

5611371556 is a wasteful number, since it uses less digits than its factorization.

5611371556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578139 (or 1578137 counting only the distinct ones).

The product of its digits is 94500, while the sum is 40.

The square root of 5611371556 is about 74909.0886074580. The cubic root of 5611371556 is about 1777.0091967517.

The spelling of 5611371556 in words is "five billion, six hundred eleven million, three hundred seventy-one thousand, five hundred fifty-six".