71920117601 has 16 divisors (see below), whose sum is σ = 77134187520. Its totient is φ = 66817850880.

The previous prime is 71920117547. The next prime is 71920117609. The reversal of 71920117601 is 10671102917.

It is a cyclic number.

It is not a de Polignac number, because 71920117601 - 2¹⁴ = 71920101217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71920117609) 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, 879236 + ... + 957546.

It is an arithmetic number, because the mean of its divisors is an integer number (4820886720).

Almost surely, 2^71920117601 is an apocalyptic number.

It is an amenable number.

71920117601 is a deficient number, since it is larger than the sum of its proper divisors (5214069919).

71920117601 is a wasteful number, since it uses less digits than its factorization.

71920117601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79024.

The product of its (nonzero) digits is 5292, while the sum is 35.

The spelling of 71920117601 in words is "seventy-one billion, nine hundred twenty million, one hundred seventeen thousand, six hundred one".