71859120220201 has 4 divisors (see below), whose sum is σ = 72051772017412. Its totient is φ = 71666468422992.

The previous prime is 71859120220177. The next prime is 71859120220241. The reversal of 71859120220201 is 10202202195817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52218313298176 + 19640806922025 = 7226224^2 + 4431795^2 .

It is a cyclic number.

It is not a de Polignac number, because 71859120220201 - 2³⁵ = 71824760481833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71859120220241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96325898046 + ... + 96325898791.

It is an arithmetic number, because the mean of its divisors is an integer number (18012943004353).

Almost surely, 2^{71859120220201} is an apocalyptic number.

It is an amenable number.

71859120220201 is a deficient number, since it is larger than the sum of its proper divisors (192651797211).

71859120220201 is a wasteful number, since it uses less digits than its factorization.

71859120220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192651797210.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 71859120220201 in words is "seventy-one trillion, eight hundred fifty-nine billion, one hundred twenty million, two hundred twenty thousand, two hundred one".