20634502550264 has 32 divisors (see below), whose sum is σ = 38790545220000. Its totient is φ = 10290389396352.

The previous prime is 20634502550261. The next prime is 20634502550273. The reversal of 20634502550264 is 46205520543602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20634502550261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3108602 + ... + 7136694.

It is an arithmetic number, because the mean of its divisors is an integer number (1212204538125).

Almost surely, 2^{20634502550264} is an apocalyptic number.

It is an amenable number.

20634502550264 is a deficient number, since it is larger than the sum of its proper divisors (18156042669736).

20634502550264 is a wasteful number, since it uses less digits than its factorization.

20634502550264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029767 (or 4029763 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 20634502550264 in words is "twenty trillion, six hundred thirty-four billion, five hundred two million, five hundred fifty thousand, two hundred sixty-four".