221701602160151 has 64 divisors (see below), whose sum is σ = 238935334256640. Its totient is φ = 204979303226880.

The previous prime is 221701602160111. The next prime is 221701602160163. The reversal of 221701602160151 is 151061206107122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221701602160151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221701602160111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93034661906 + ... + 93034664288.

It is an arithmetic number, because the mean of its divisors is an integer number (3733364597760).

Almost surely, 2^{221701602160151} is an apocalyptic number.

221701602160151 is a deficient number, since it is larger than the sum of its proper divisors (17233732096489).

221701602160151 is a wasteful number, since it uses less digits than its factorization.

221701602160151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684.

The product of its (nonzero) digits is 10080, while the sum is 35.

Adding to 221701602160151 its reverse (151061206107122), we get a palindrome (372762808267273).

The spelling of 221701602160151 in words is "two hundred twenty-one trillion, seven hundred one billion, six hundred two million, one hundred sixty thousand, one hundred fifty-one".