55660165507 has 2 divisors, whose sum is σ = 55660165508. Its totient is φ = 55660165506.

The previous prime is 55660165487. The next prime is 55660165523. The reversal of 55660165507 is 70556106655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55660165507 - 2¹⁵ = 55660132739 is a prime.

It is not a weakly prime, because it can be changed into another prime (55660162507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27830082753 + 27830082754.

It is an arithmetic number, because the mean of its divisors is an integer number (27830082754).

Almost surely, 2^55660165507 is an apocalyptic number.

55660165507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55660165507 is an equidigital number, since it uses as much as digits as its factorization.

55660165507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 55660165507 in words is "fifty-five billion, six hundred sixty million, one hundred sixty-five thousand, five hundred seven".