11666735432 has 64 divisors (see below), whose sum is σ = 24250916160. Its totient is φ = 5217696000.

The previous prime is 11666735417. The next prime is 11666735449. The reversal of 11666735432 is 23453766611.

It is a super-2 number, since 2×11666735432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444718 + ... + 1452770.

It is an arithmetic number, because the mean of its divisors is an integer number (378920565).

Almost surely, 2^11666735432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11666735432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12125458080).

11666735432 is an abundant number, since it is smaller than the sum of its proper divisors (12584180728).

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

11666735432 is a wasteful number, since it uses less digits than its factorization.

11666735432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334 (or 8330 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The spelling of 11666735432 in words is "eleven billion, six hundred sixty-six million, seven hundred thirty-five thousand, four hundred thirty-two".