121632108686 has 16 divisors (see below), whose sum is σ = 199042120368. Its totient is φ = 55285166400.

The previous prime is 121632108683. The next prime is 121632108701. The reversal of 121632108686 is 686801236121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121632108683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561656 + ... + 747476.

It is an arithmetic number, because the mean of its divisors is an integer number (12440132523).

Almost surely, 2^121632108686 is an apocalyptic number.

121632108686 is a deficient number, since it is larger than the sum of its proper divisors (77410011682).

121632108686 is a wasteful number, since it uses less digits than its factorization.

121632108686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215587.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 121632108686 in words is "one hundred twenty-one billion, six hundred thirty-two million, one hundred eight thousand, six hundred eighty-six".