121527761564 has 48 divisors (see below), whose sum is σ = 234407628000. Its totient is φ = 54668928000.

The previous prime is 121527761539. The next prime is 121527761587. The reversal of 121527761564 is 465167725121.

121527761564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13545272 + ... + 13554240.

It is an arithmetic number, because the mean of its divisors is an integer number (4883492250).

Almost surely, 2^121527761564 is an apocalyptic number.

It is an amenable number.

121527761564 is a deficient number, since it is larger than the sum of its proper divisors (112879866436).

121527761564 is a wasteful number, since it uses less digits than its factorization.

121527761564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134 (or 12132 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The spelling of 121527761564 in words is "one hundred twenty-one billion, five hundred twenty-seven million, seven hundred sixty-one thousand, five hundred sixty-four".