61116165001 has 2 divisors, whose sum is σ = 61116165002. Its totient is φ = 61116165000.

The previous prime is 61116164957. The next prime is 61116165007. The reversal of 61116165001 is 10056161116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41341055625 + 19775109376 = 203325^2 + 140624^2 .

It is a cyclic number.

It is not a de Polignac number, because 61116165001 - 2¹³ = 61116156809 is a prime.

It is not a weakly prime, because it can be changed into another prime (61116165007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30558082500 + 30558082501.

It is an arithmetic number, because the mean of its divisors is an integer number (30558082501).

Almost surely, 2^61116165001 is an apocalyptic number.

It is an amenable number.

61116165001 is a deficient number, since it is larger than the sum of its proper divisors (1).

61116165001 is an equidigital number, since it uses as much as digits as its factorization.

61116165001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 61116165001 in words is "sixty-one billion, one hundred sixteen million, one hundred sixty-five thousand, one".