961521125169 has 16 divisors (see below), whose sum is σ = 1436375540160. Its totient is φ = 566990343360.

The previous prime is 961521125141. The next prime is 961521125177.

961521125169 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 961521125169 - 2⁷ = 961521125041 is a prime.

It is a super-2 number, since 2×961521125169² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (961521165169) 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, 393742074 + ... + 393744515.

It is an arithmetic number, because the mean of its divisors is an integer number (89773471260).

Almost surely, 2^961521125169 is an apocalyptic number.

It is an amenable number.

961521125169 is a deficient number, since it is larger than the sum of its proper divisors (474854414991).

961521125169 is a wasteful number, since it uses less digits than its factorization.

961521125169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787486640.

The product of its digits is 291600, while the sum is 48.

The spelling of 961521125169 in words is "nine hundred sixty-one billion, five hundred twenty-one million, one hundred twenty-five thousand, one hundred sixty-nine".