121040116464 has 40 divisors (see below), whose sum is σ = 312767160192. Its totient is φ = 40336358080.

The previous prime is 121040116459. The next prime is 121040116487. The reversal of 121040116464 is 464611040121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133092 + ... + 509699.

Almost surely, 2^121040116464 is an apocalyptic number.

It is an amenable number.

121040116464 is an abundant number, since it is smaller than the sum of its proper divisors (191727043728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121040116464 is a wasteful number, since it uses less digits than its factorization.

121040116464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646725 (or 646719 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 121040116464 its reverse (464611040121), we get a palindrome (585651156585).

The spelling of 121040116464 in words is "one hundred twenty-one billion, forty million, one hundred sixteen thousand, four hundred sixty-four".