20159937566670 has 48 divisors (see below), whose sum is σ = 53182248532560. Its totient is φ = 4887257591040.

The previous prime is 20159937566603. The next prime is 20159937566683. The reversal of 20159937566670 is 7666573995102.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

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, 2776847275 + ... + 2776854534.

It is an arithmetic number, because the mean of its divisors is an integer number (1107963511095).

Almost surely, 2^{20159937566670} is an apocalyptic number.

20159937566670 is an abundant number, since it is smaller than the sum of its proper divisors (33022310965890).

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

20159937566670 is a wasteful number, since it uses less digits than its factorization.

20159937566670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553701841 (or 5553701830 counting only the distinct ones).

The product of its (nonzero) digits is 128595600, while the sum is 66.

The spelling of 20159937566670 in words is "twenty trillion, one hundred fifty-nine billion, nine hundred thirty-seven million, five hundred sixty-six thousand, six hundred seventy".