11172334563 has 16 divisors (see below), whose sum is σ = 17824807840. Its totient is φ = 6875282592.

The previous prime is 11172334553. The next prime is 11172334573. The reversal of 11172334563 is 36543327111.

11172334563 is a `hidden beast` number, since 1 + 1 + 172 + 33 + 456 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (11172334553) and next prime (11172334573).

It is not a de Polignac number, because 11172334563 - 2²⁶ = 11105225699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11172334513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15914656 + ... + 15915357.

It is an arithmetic number, because the mean of its divisors is an integer number (1114050490).

Almost surely, 2^11172334563 is an apocalyptic number.

11172334563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11172334563 is a deficient number, since it is larger than the sum of its proper divisors (6652473277).

11172334563 is a wasteful number, since it uses less digits than its factorization.

11172334563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31830035 (or 31830029 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The spelling of 11172334563 in words is "eleven billion, one hundred seventy-two million, three hundred thirty-four thousand, five hundred sixty-three".