20271572707601 has 16 divisors (see below), whose sum is σ = 20791105380864. Its totient is φ = 19757498002944.

The previous prime is 20271572707597. The next prime is 20271572707643. The reversal of 20271572707601 is 10670727517202.

It is a cyclic number.

It is not a de Polignac number, because 20271572707601 - 2² = 20271572707597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20271572707201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3683105 + ... + 7355841.

It is an arithmetic number, because the mean of its divisors is an integer number (1299444086304).

Almost surely, 2^{20271572707601} is an apocalyptic number.

It is an amenable number.

20271572707601 is a deficient number, since it is larger than the sum of its proper divisors (519532673263).

20271572707601 is a wasteful number, since it uses less digits than its factorization.

20271572707601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673480.

The product of its (nonzero) digits is 576240, while the sum is 47.

The spelling of 20271572707601 in words is "twenty trillion, two hundred seventy-one billion, five hundred seventy-two million, seven hundred seven thousand, six hundred one".