20730157166160 has 240 divisors, whose sum is σ = 75434037579264. Its totient is φ = 5071501974528.

The previous prime is 20730157166123. The next prime is 20730157166161. The reversal of 20730157166160 is 6166175103702.

20730157166160 is a `hidden beast` number, since 2 + 0 + 7 + 3 + 0 + 1 + 571 + 66 + 16 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×20730157166160² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20730157166161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5268064 + ... + 8319423.

Almost surely, 2^{20730157166160} is an apocalyptic number.

20730157166160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20730157166160 is an abundant number, since it is smaller than the sum of its proper divisors (54703880413104).

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

20730157166160 is a wasteful number, since it uses less digits than its factorization.

20730157166160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587682 (or 13587673 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 20730157166160 in words is "twenty trillion, seven hundred thirty billion, one hundred fifty-seven million, one hundred sixty-six thousand, one hundred sixty".