20466955518132 has 48 divisors (see below), whose sum is σ = 48977148971520. Its totient is φ = 6648617740128.

The previous prime is 20466955518049. The next prime is 20466955518137. The reversal of 20466955518132 is 23181555966402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466955518137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44539632 + ... + 44996807.

It is an arithmetic number, because the mean of its divisors is an integer number (1020357270240).

Almost surely, 2^{20466955518132} is an apocalyptic number.

It is an amenable number.

20466955518132 is an abundant number, since it is smaller than the sum of its proper divisors (28510193453388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20466955518132 is a wasteful number, since it uses less digits than its factorization.

20466955518132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89536932 (or 89536930 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 57.

The spelling of 20466955518132 in words is "twenty trillion, four hundred sixty-six billion, nine hundred fifty-five million, five hundred eighteen thousand, one hundred thirty-two".