20154741564472 has 128 divisors (see below), whose sum is σ = 39233105049600. Its totient is φ = 9700485879168.

The previous prime is 20154741564467. The next prime is 20154741564521. The reversal of 20154741564472 is 27446514745102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13814078479 + ... + 13814079937.

It is an arithmetic number, because the mean of its divisors is an integer number (306508633200).

Almost surely, 2^{20154741564472} is an apocalyptic number.

It is an amenable number.

20154741564472 is a deficient number, since it is larger than the sum of its proper divisors (19078363485128).

20154741564472 is a wasteful number, since it uses less digits than its factorization.

20154741564472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 52.

The spelling of 20154741564472 in words is "twenty trillion, one hundred fifty-four billion, seven hundred forty-one million, five hundred sixty-four thousand, four hundred seventy-two".