166252666265 has 8 divisors (see below), whose sum is σ = 228003656640. Its totient is φ = 114001828272.

The previous prime is 166252666253. The next prime is 166252666277. The reversal of 166252666265 is 562666252661.

It is an interprime number because it is at equal distance from previous prime (166252666253) and next prime (166252666277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166252666265 - 2⁴ = 166252666249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375038055 + ... + 2375038124.

It is an arithmetic number, because the mean of its divisors is an integer number (28500457080).

Almost surely, 2^166252666265 is an apocalyptic number.

It is an amenable number.

166252666265 is a deficient number, since it is larger than the sum of its proper divisors (61750990375).

166252666265 is an equidigital number, since it uses as much as digits as its factorization.

166252666265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750076191.

The product of its digits is 9331200, while the sum is 53.

The spelling of 166252666265 in words is "one hundred sixty-six billion, two hundred fifty-two million, six hundred sixty-six thousand, two hundred sixty-five".