80957616101 has 4 divisors (see below), whose sum is σ = 81233922252. Its totient is φ = 80681309952.

The previous prime is 80957616083. The next prime is 80957616139. The reversal of 80957616101 is 10161675908.

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 69365863876 + 11591752225 = 263374^2 + 107665^2 .

It is a cyclic number.

It is not a de Polignac number, because 80957616101 - 2⁶ = 80957616037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80957616601) 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, 138152636 + ... + 138153221.

It is an arithmetic number, because the mean of its divisors is an integer number (20308480563).

Almost surely, 2^80957616101 is an apocalyptic number.

It is an amenable number.

80957616101 is a deficient number, since it is larger than the sum of its proper divisors (276306151).

80957616101 is a wasteful number, since it uses less digits than its factorization.

80957616101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276306150.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 80957616101 in words is "eighty billion, nine hundred fifty-seven million, six hundred sixteen thousand, one hundred one".