20117023634064 has 120 divisors (see below), whose sum is σ = 60456755743200. Its totient is φ = 5747431345152.

The previous prime is 20117023634047. The next prime is 20117023634101. The reversal of 20117023634064 is 46043632071102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48831727 + ... + 49241969.

It is an arithmetic number, because the mean of its divisors is an integer number (503806297860).

Almost surely, 2^{20117023634064} is an apocalyptic number.

20117023634064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20117023634064 is an abundant number, since it is smaller than the sum of its proper divisors (40339732109136).

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

20117023634064 is a wasteful number, since it uses less digits than its factorization.

20117023634064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431117 (or 431104 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 20117023634064 in words is "twenty trillion, one hundred seventeen billion, twenty-three million, six hundred thirty-four thousand, sixty-four".