11551201512 has 64 divisors (see below), whose sum is σ = 29046792000. Its totient is φ = 3827948544.

The previous prime is 11551201511. The next prime is 11551201537. The reversal of 11551201512 is 21510215511.

It is a super-2 number, since 2×11551201512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11551201511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544423 + ... + 5546505.

It is an arithmetic number, because the mean of its divisors is an integer number (453856125).

Almost surely, 2^11551201512 is an apocalyptic number.

11551201512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11551201512 is an abundant number, since it is smaller than the sum of its proper divisors (17495590488).

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

11551201512 is a wasteful number, since it uses less digits than its factorization.

11551201512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 24.

The spelling of 11551201512 in words is "eleven billion, five hundred fifty-one million, two hundred one thousand, five hundred twelve".