172580758061 has 2 divisors, whose sum is σ = 172580758062. Its totient is φ = 172580758060.

The previous prime is 172580758039. The next prime is 172580758073. The reversal of 172580758061 is 160857085271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172399344100 + 181413961 = 415210^2 + 13469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172580758061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172580758261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86290379030 + 86290379031.

It is an arithmetic number, because the mean of its divisors is an integer number (86290379031).

Almost surely, 2^172580758061 is an apocalyptic number.

It is an amenable number.

172580758061 is a deficient number, since it is larger than the sum of its proper divisors (1).

172580758061 is an equidigital number, since it uses as much as digits as its factorization.

172580758061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 172580758061 in words is "one hundred seventy-two billion, five hundred eighty million, seven hundred fifty-eight thousand, sixty-one".