11451155052 has 24 divisors (see below), whose sum is σ = 28291089456. Its totient is φ = 3592519168.

The previous prime is 11451155021. The next prime is 11451155057. The reversal of 11451155052 is 25055115411.

It is a super-2 number, since 2×11451155052² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11451155057) 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, 28066353 + ... + 28066760.

It is an arithmetic number, because the mean of its divisors is an integer number (1178795394).

Almost surely, 2^11451155052 is an apocalyptic number.

11451155052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11451155052 is an abundant number, since it is smaller than the sum of its proper divisors (16839934404).

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

11451155052 is a wasteful number, since it uses less digits than its factorization.

11451155052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56133137 (or 56133135 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 11451155052 in words is "eleven billion, four hundred fifty-one million, one hundred fifty-five thousand, fifty-two".