20350133210664 has 32 divisors (see below), whose sum is σ = 56528147808000. Its totient is φ = 6783377736816.

The previous prime is 20350133210663. The next prime is 20350133210677. The reversal of 20350133210664 is 46601233105302.

20350133210664 is a `hidden beast` number, since 2 + 0 + 350 + 1 + 33 + 210 + 6 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20350133210663) 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, 47106789624 + ... + 47106790055.

It is an arithmetic number, because the mean of its divisors is an integer number (1766504619000).

Almost surely, 2^{20350133210664} is an apocalyptic number.

20350133210664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20350133210664 is an abundant number, since it is smaller than the sum of its proper divisors (36178014597336).

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

20350133210664 is a wasteful number, since it uses less digits than its factorization.

20350133210664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94213579694 (or 94213579684 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 20350133210664 its reverse (46601233105302), we get a palindrome (66951366315966).

The spelling of 20350133210664 in words is "twenty trillion, three hundred fifty billion, one hundred thirty-three million, two hundred ten thousand, six hundred sixty-four".