161601160101579 has 72 divisors (see below), whose sum is σ = 258015138386096. Its totient is φ = 97389844041600.

The previous prime is 161601160101461. The next prime is 161601160101611. The reversal of 161601160101579 is 975101061106161.

161601160101579 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 0 + 1 + 1 + 60 + 10 + 1 + 579 = 666.

It is not a de Polignac number, because 161601160101579 - 2¹¹ = 161601160099531 is a prime.

It is a super-2 number, since 2×161601160101579² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161601160106579) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2515670049 + ... + 2515734285.

Almost surely, 2^{161601160101579} is an apocalyptic number.

161601160101579 is a deficient number, since it is larger than the sum of its proper divisors (96413978284517).

161601160101579 is a wasteful number, since it uses less digits than its factorization.

161601160101579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77209 (or 77195 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 45.

The spelling of 161601160101579 in words is "one hundred sixty-one trillion, six hundred one billion, one hundred sixty million, one hundred one thousand, five hundred seventy-nine".