160661011560 has 128 divisors (see below), whose sum is σ = 551268806400. Its totient is φ = 36693780480.

The previous prime is 160661011541. The next prime is 160661011601. The reversal of 160661011560 is 65110166061.

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, 1008570 + ... + 1156950.

It is an arithmetic number, because the mean of its divisors is an integer number (4306787550).

Almost surely, 2^160661011560 is an apocalyptic number.

160661011560 is a gapful number since it is divisible by the number (10) 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 160661011560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275634403200).

160661011560 is an abundant number, since it is smaller than the sum of its proper divisors (390607794840).

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

160661011560 is a wasteful number, since it uses less digits than its factorization.

160661011560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149691 (or 149687 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 160661011560 in words is "one hundred sixty billion, six hundred sixty-one million, eleven thousand, five hundred sixty".