166148902033 has 4 divisors (see below), whose sum is σ = 166221363508. Its totient is φ = 166076440560.

The previous prime is 166148902027. The next prime is 166148902037. The reversal of 166148902033 is 330209841661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29003111809 + 137145790224 = 170303^2 + 370332^2 .

It is a cyclic number.

It is not a de Polignac number, because 166148902033 - 2⁵ = 166148902001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166148902037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36227298 + ... + 36231883.

It is an arithmetic number, because the mean of its divisors is an integer number (41555340877).

Almost surely, 2^166148902033 is an apocalyptic number.

It is an amenable number.

166148902033 is a deficient number, since it is larger than the sum of its proper divisors (72461475).

166148902033 is an equidigital number, since it uses as much as digits as its factorization.

166148902033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72461474.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 166148902033 in words is "one hundred sixty-six billion, one hundred forty-eight million, nine hundred two thousand, thirty-three".