20133679899648 has 176 divisors, whose sum is σ = 64937463502464. Its totient is φ = 5414098698240.

The previous prime is 20133679899581. The next prime is 20133679899667. The reversal of 20133679899648 is 84699897633102.

It is a self number, because there is not a number n which added to its sum of digits gives 20133679899648.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27171963 + ... + 27903098.

Almost surely, 2^{20133679899648} is an apocalyptic number.

20133679899648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20133679899648 is an abundant number, since it is smaller than the sum of its proper divisors (44803783602816).

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

20133679899648 is a wasteful number, since it uses less digits than its factorization.

20133679899648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55075108 (or 55075090 counting only the distinct ones).

The product of its (nonzero) digits is 846526464, while the sum is 75.

The spelling of 20133679899648 in words is "twenty trillion, one hundred thirty-three billion, six hundred seventy-nine million, eight hundred ninety-nine thousand, six hundred forty-eight".