160661011556 has 24 divisors (see below), whose sum is σ = 302844885504. Its totient is φ = 74359232640.

The previous prime is 160661011541. The next prime is 160661011601. The reversal of 160661011556 is 655110166061.

It is a super-2 number, since 2×160661011556² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28163525 + ... + 28169228.

It is an arithmetic number, because the mean of its divisors is an integer number (12618536896).

Almost surely, 2^160661011556 is an apocalyptic number.

It is an amenable number.

160661011556 is a deficient number, since it is larger than the sum of its proper divisors (142183873948).

160661011556 is a wasteful number, since it uses less digits than its factorization.

160661011556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56332811 (or 56332809 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 160661011556 in words is "one hundred sixty billion, six hundred sixty-one million, eleven thousand, five hundred fifty-six".