5656511155 has 4 divisors (see below), whose sum is σ = 6787813392. Its totient is φ = 4525208920.

The previous prime is 5656511143. The next prime is 5656511191. The reversal of 5656511155 is 5511156565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5511156565 = 5 ⋅1102231313.

It is not a de Polignac number, because 5656511155 - 2¹⁷ = 5656380083 is a prime.

It is a super-2 number, since 2×5656511155² = 63992236893278868050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565651111 + ... + 565651120.

It is an arithmetic number, because the mean of its divisors is an integer number (1696953348).

Almost surely, 2^5656511155 is an apocalyptic number.

5656511155 is a deficient number, since it is larger than the sum of its proper divisors (1131302237).

5656511155 is a wasteful number, since it uses less digits than its factorization.

5656511155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131302236.

The product of its digits is 112500, while the sum is 40.

The square root of 5656511155 is about 75209.7809796040. The cubic root of 5656511155 is about 1781.7614128880.

The spelling of 5656511155 in words is "five billion, six hundred fifty-six million, five hundred eleven thousand, one hundred fifty-five".