166632615414553 has 2 divisors, whose sum is σ = 166632615414554. Its totient is φ = 166632615414552.

The previous prime is 166632615414521. The next prime is 166632615414557. The reversal of 166632615414553 is 355414516236661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119138905915929 + 47493709498624 = 10915077^2 + 6891568^2 .

It is a cyclic number.

It is not a de Polignac number, because 166632615414553 - 2⁵ = 166632615414521 is a prime.

It is not a weakly prime, because it can be changed into another prime (166632615414557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83316307707276 + 83316307707277.

It is an arithmetic number, because the mean of its divisors is an integer number (83316307707277).

Almost surely, 2^{166632615414553} is an apocalyptic number.

It is an amenable number.

166632615414553 is a deficient number, since it is larger than the sum of its proper divisors (1).

166632615414553 is an equidigital number, since it uses as much as digits as its factorization.

166632615414553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656000, while the sum is 58.

The spelling of 166632615414553 in words is "one hundred sixty-six trillion, six hundred thirty-two billion, six hundred fifteen million, four hundred fourteen thousand, five hundred fifty-three".