20251354076644 has 96 divisors (see below), whose sum is σ = 38502051840000. Its totient is φ = 9288523342080.

The previous prime is 20251354076641. The next prime is 20251354076683. The reversal of 20251354076644 is 44667045315202.

It is not an unprimeable number, because it can be changed into a prime (20251354076641) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2009257197 + ... + 2009267275.

It is an arithmetic number, because the mean of its divisors is an integer number (401063040000).

Almost surely, 2^{20251354076644} is an apocalyptic number.

It is an amenable number.

20251354076644 is a deficient number, since it is larger than the sum of its proper divisors (18250697763356).

20251354076644 is a wasteful number, since it uses less digits than its factorization.

20251354076644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921 (or 14919 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 20251354076644 in words is "twenty trillion, two hundred fifty-one billion, three hundred fifty-four million, seventy-six thousand, six hundred forty-four".