161606600061064 has 32 divisors (see below), whose sum is σ = 313483829794200. Its totient is φ = 78011316597760.

The previous prime is 161606600061061. The next prime is 161606600061073. The reversal of 161606600061064 is 460160006606161.

It can be written as a sum of positive squares in 4 ways, for example, as 110823160998564 + 50783439062500 = 10527258^2 + 7126250^2 .

It is a super-2 number, since 2×161606600061064² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161606600061064.

It is not an unprimeable number, because it can be changed into a prime (161606600061061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22076017 + ... + 28470400.

Almost surely, 2^{161606600061064} is an apocalyptic number.

It is an amenable number.

161606600061064 is a deficient number, since it is larger than the sum of its proper divisors (151877229733136).

161606600061064 is a wasteful number, since it uses less digits than its factorization.

161606600061064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50560233 (or 50560229 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 161606600061064 in words is "one hundred sixty-one trillion, six hundred six billion, six hundred million, sixty-one thousand, sixty-four".