161752015677 has 32 divisors (see below), whose sum is σ = 268398489600. Its totient is φ = 84545512128.

The previous prime is 161752015661. The next prime is 161752015687. The reversal of 161752015677 is 776510257161.

It is not a de Polignac number, because 161752015677 - 2⁴ = 161752015661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161752015687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6977973 + ... + 7001114.

It is an arithmetic number, because the mean of its divisors is an integer number (8387452800).

Almost surely, 2^161752015677 is an apocalyptic number.

It is an amenable number.

161752015677 is a deficient number, since it is larger than the sum of its proper divisors (106646473923).

161752015677 is a wasteful number, since it uses less digits than its factorization.

161752015677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13979145.

The product of its (nonzero) digits is 617400, while the sum is 48.

The spelling of 161752015677 in words is "one hundred sixty-one billion, seven hundred fifty-two million, fifteen thousand, six hundred seventy-seven".