161315282877 has 16 divisors (see below), whose sum is σ = 246978765312. Its totient is φ = 91743286320.

The previous prime is 161315282839. The next prime is 161315282923. The reversal of 161315282877 is 778282513161.

It is not a de Polignac number, because 161315282877 - 2³⁴ = 144135413693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161315281877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18198603 + ... + 18207464.

It is an arithmetic number, because the mean of its divisors is an integer number (15436172832).

Almost surely, 2^161315282877 is an apocalyptic number.

It is an amenable number.

161315282877 is a deficient number, since it is larger than the sum of its proper divisors (85663482435).

161315282877 is a wasteful number, since it uses less digits than its factorization.

161315282877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36406288.

The product of its digits is 1128960, while the sum is 51.

The spelling of 161315282877 in words is "one hundred sixty-one billion, three hundred fifteen million, two hundred eighty-two thousand, eight hundred seventy-seven".