161301428585 has 16 divisors (see below), whose sum is σ = 216308437632. Its totient is φ = 114448905600.

The previous prime is 161301428581. The next prime is 161301428599. The reversal of 161301428585 is 585824103161.

It is not a de Polignac number, because 161301428585 - 2² = 161301428581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161301428581) 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, 35763029 + ... + 35767538.

It is an arithmetic number, because the mean of its divisors is an integer number (13519277352).

Almost surely, 2^161301428585 is an apocalyptic number.

It is an amenable number.

161301428585 is a deficient number, since it is larger than the sum of its proper divisors (55007009047).

161301428585 is a wasteful number, since it uses less digits than its factorization.

161301428585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71530624.

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 161301428585 in words is "one hundred sixty-one billion, three hundred one million, four hundred twenty-eight thousand, five hundred eighty-five".