11553652572 has 108 divisors (see below), whose sum is σ = 34470200520. Its totient is φ = 3000930240.

The previous prime is 11553652543. The next prime is 11553652573. The reversal of 11553652572 is 27525635511.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553652573) 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 35 ways as a sum of consecutive naturals, for example, 10047 + ... + 152342.

Almost surely, 2^11553652572 is an apocalyptic number.

11553652572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11553652572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17235100260).

11553652572 is an abundant number, since it is smaller than the sum of its proper divisors (22916547948).

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

11553652572 is a wasteful number, since it uses less digits than its factorization.

11553652572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162432 (or 162412 counting only the distinct ones).

The product of its digits is 315000, while the sum is 42.

The spelling of 11553652572 in words is "eleven billion, five hundred fifty-three million, six hundred fifty-two thousand, five hundred seventy-two".