121457561496 has 16 divisors (see below), whose sum is σ = 303643903800. Its totient is φ = 40485853824.

The previous prime is 121457561471. The next prime is 121457561507. The reversal of 121457561496 is 694165754121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530365841 + ... + 2530365888.

Almost surely, 2^121457561496 is an apocalyptic number.

It is an amenable number.

121457561496 is an abundant number, since it is smaller than the sum of its proper divisors (182186342304).

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

121457561496 is a wasteful number, since it uses less digits than its factorization.

121457561496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060731738 (or 5060731734 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The spelling of 121457561496 in words is "one hundred twenty-one billion, four hundred fifty-seven million, five hundred sixty-one thousand, four hundred ninety-six".