20616634051412 has 24 divisors (see below), whose sum is σ = 41288172629760. Its totient is φ = 8823935052000.

The previous prime is 20616634051411. The next prime is 20616634051487. The reversal of 20616634051412 is 21415043661602.

It is a self number, because there is not a number n which added to its sum of digits gives 20616634051412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20616634051411) 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 7 ways as a sum of consecutive naturals, for example, 490197587 + ... + 490239642.

It is an arithmetic number, because the mean of its divisors is an integer number (1720340526240).

Almost surely, 2^{20616634051412} is an apocalyptic number.

It is an amenable number.

20616634051412 is an abundant number, since it is smaller than the sum of its proper divisors (20671538578348).

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

20616634051412 is a wasteful number, since it uses less digits than its factorization.

20616634051412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980437991 (or 980437989 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20616634051412 in words is "twenty trillion, six hundred sixteen billion, six hundred thirty-four million, fifty-one thousand, four hundred twelve".