20455011664325 has 12 divisors (see below), whose sum is σ = 28987673673120. Its totient is φ = 14026293712560.

The previous prime is 20455011664231. The next prime is 20455011664327. The reversal of 20455011664325 is 52346611055402.

It is not a de Polignac number, because 20455011664325 - 2⁸ = 20455011664069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455011664327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58442890295 + ... + 58442890644.

It is an arithmetic number, because the mean of its divisors is an integer number (2415639472760).

Almost surely, 2^{20455011664325} is an apocalyptic number.

20455011664325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20455011664325 is a deficient number, since it is larger than the sum of its proper divisors (8532662008795).

20455011664325 is a wasteful number, since it uses less digits than its factorization.

20455011664325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116885780956 (or 116885780951 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 20455011664325 in words is "twenty trillion, four hundred fifty-five billion, eleven million, six hundred sixty-four thousand, three hundred twenty-five".