185106070561 has 2 divisors, whose sum is σ = 185106070562. Its totient is φ = 185106070560.

The previous prime is 185106070549. The next prime is 185106070609. The reversal of 185106070561 is 165070601581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150054742161 + 35051328400 = 387369^2 + 187220^2 .

It is a cyclic number.

It is not a de Polignac number, because 185106070561 - 2²⁹ = 184569199649 is a prime.

It is not a weakly prime, because it can be changed into another prime (185106070531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92553035280 + 92553035281.

It is an arithmetic number, because the mean of its divisors is an integer number (92553035281).

Almost surely, 2^185106070561 is an apocalyptic number.

It is an amenable number.

185106070561 is a deficient number, since it is larger than the sum of its proper divisors (1).

185106070561 is an equidigital number, since it uses as much as digits as its factorization.

185106070561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 185106070561 in words is "one hundred eighty-five billion, one hundred six million, seventy thousand, five hundred sixty-one".