161775006574 has 16 divisors (see below), whose sum is σ = 253247547168. Its totient is φ = 77360115712.

The previous prime is 161775006559. The next prime is 161775006593. The reversal of 161775006574 is 475600577161.

It is a congruent number.

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, 107214 + ... + 578830.

It is an arithmetic number, because the mean of its divisors is an integer number (15827971698).

Almost surely, 2^161775006574 is an apocalyptic number.

161775006574 is a deficient number, since it is larger than the sum of its proper divisors (91472540594).

161775006574 is a wasteful number, since it uses less digits than its factorization.

161775006574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479099.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 161775006574 in words is "one hundred sixty-one billion, seven hundred seventy-five million, six thousand, five hundred seventy-four".