11572562016 has 72 divisors (see below), whose sum is σ = 34128365544. Its totient is φ = 3857518080.

The previous prime is 11572561999. The next prime is 11572562063. The reversal of 11572562016 is 61026527511.

11572562016 is a `hidden beast` number, since 1 + 1 + 5 + 7 + 25 + 620 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×11572562016² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 736345 + ... + 751896.

It is an arithmetic number, because the mean of its divisors is an integer number (474005077).

Almost surely, 2^11572562016 is an apocalyptic number.

11572562016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11572562016 is an abundant number, since it is smaller than the sum of its proper divisors (22555803528).

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

11572562016 is an equidigital number, since it uses as much as digits as its factorization.

11572562016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488266 (or 1488246 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 11572562016 in words is "eleven billion, five hundred seventy-two million, five hundred sixty-two thousand, sixteen".