11618562432 has 96 divisors (see below), whose sum is σ = 31534713720. Its totient is φ = 3790176256.

The previous prime is 11618562409. The next prime is 11618562443. The reversal of 11618562432 is 23426581611.

It is a tau number, because it is divible by the number of its divisors (96).

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, 841408 + ... + 855104.

Almost surely, 2^11618562432 is an apocalyptic number.

11618562432 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 11618562432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15767356860).

11618562432 is an abundant number, since it is smaller than the sum of its proper divisors (19916151288).

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

11618562432 is an equidigital number, since it uses as much as digits as its factorization.

11618562432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13808 (or 13749 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The spelling of 11618562432 in words is "eleven billion, six hundred eighteen million, five hundred sixty-two thousand, four hundred thirty-two".