11471557055 has 8 divisors (see below), whose sum is σ = 15732421152. Its totient is φ = 7866210528.

The previous prime is 11471557051. The next prime is 11471557079. The reversal of 11471557055 is 55075517411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11471557055 - 2² = 11471557051 is a prime.

It is a super-2 number, since 2×11471557055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11471557051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163879352 + ... + 163879421.

It is an arithmetic number, because the mean of its divisors is an integer number (1966552644).

Almost surely, 2^11471557055 is an apocalyptic number.

11471557055 is a deficient number, since it is larger than the sum of its proper divisors (4260864097).

11471557055 is an equidigital number, since it uses as much as digits as its factorization.

11471557055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327758785.

The product of its (nonzero) digits is 122500, while the sum is 41.

The spelling of 11471557055 in words is "eleven billion, four hundred seventy-one million, five hundred fifty-seven thousand, fifty-five".