11890023552 has 192 divisors, whose sum is σ = 37494718560. Its totient is φ = 3586682880.

The previous prime is 11890023529. The next prime is 11890023617. The reversal of 11890023552 is 25532009811.

11890023552 is a `hidden beast` number, since 1 + 1 + 89 + 0 + 0 + 23 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×11890023552² (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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2950563 + ... + 2954589.

Almost surely, 2^11890023552 is an apocalyptic number.

11890023552 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 11890023552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18747359280).

11890023552 is an abundant number, since it is smaller than the sum of its proper divisors (25604695008).

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

11890023552 is a wasteful number, since it uses less digits than its factorization.

11890023552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 11890023552 in words is "eleven billion, eight hundred ninety million, twenty-three thousand, five hundred fifty-two".