160242001921 has 16 divisors (see below), whose sum is σ = 171290318976. Its totient is φ = 149374548736.

The previous prime is 160242001879. The next prime is 160242001967. The reversal of 160242001921 is 129100242061.

It is a cyclic number.

It is not a de Polignac number, because 160242001921 - 2²⁵ = 160208447489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160242001921.

It is not an unprimeable number, because it can be changed into a prime (160242001991) 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, 15632820 + ... + 15643066.

It is an arithmetic number, because the mean of its divisors is an integer number (10705644936).

Almost surely, 2^160242001921 is an apocalyptic number.

It is an amenable number.

160242001921 is a deficient number, since it is larger than the sum of its proper divisors (11048317055).

160242001921 is a wasteful number, since it uses less digits than its factorization.

160242001921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18968.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 160242001921 its reverse (129100242061), we get a palindrome (289342243982).

The spelling of 160242001921 in words is "one hundred sixty billion, two hundred forty-two million, one thousand, nine hundred twenty-one".