661182401160 has 128 divisors (see below), whose sum is σ = 2299764960000. Its totient is φ = 168649417728.

The previous prime is 661182401101. The next prime is 661182401213. The reversal of 661182401160 is 61104281166.

661182401160 is a `hidden beast` number, since 6 + 6 + 11 + 82 + 401 + 160 = 666.

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 31 ways as a sum of consecutive naturals, for example, 13283985 + ... + 13333664.

It is an arithmetic number, because the mean of its divisors is an integer number (17966913750).

Almost surely, 2^661182401160 is an apocalyptic number.

661182401160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

661182401160 is an abundant number, since it is smaller than the sum of its proper divisors (1638582558840).

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

661182401160 is a wasteful number, since it uses less digits than its factorization.

661182401160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26617692 (or 26617682 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 661182401160 in words is "six hundred sixty-one billion, one hundred eighty-two million, four hundred one thousand, one hundred sixty".