11272045155 has 32 divisors (see below), whose sum is σ = 21091090944. Its totient is φ = 5033097216.

The previous prime is 11272045133. The next prime is 11272045181. The reversal of 11272045155 is 55154027211.

It is not a de Polignac number, because 11272045155 - 2⁵ = 11272045123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1243774 + ... + 1252803.

It is an arithmetic number, because the mean of its divisors is an integer number (659096592).

Almost surely, 2^11272045155 is an apocalyptic number.

11272045155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11272045155 is a deficient number, since it is larger than the sum of its proper divisors (9819045789).

11272045155 is a wasteful number, since it uses less digits than its factorization.

11272045155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496635.

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 11272045155 in words is "eleven billion, two hundred seventy-two million, forty-five thousand, one hundred fifty-five".