164251252775 has 6 divisors (see below), whose sum is σ = 203671553472. Its totient is φ = 131401002200.

The previous prime is 164251252757. The next prime is 164251252793. The reversal of 164251252775 is 577252152461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (164251252757) and next prime (164251252793).

It is not a de Polignac number, because 164251252775 - 2²⁰ = 164250204199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3285025031 + ... + 3285025080.

It is an arithmetic number, because the mean of its divisors is an integer number (33945258912).

Almost surely, 2^164251252775 is an apocalyptic number.

164251252775 is a deficient number, since it is larger than the sum of its proper divisors (39420300697).

164251252775 is an equidigital number, since it uses as much as digits as its factorization.

164251252775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570050121 (or 6570050116 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 47.

The spelling of 164251252775 in words is "one hundred sixty-four billion, two hundred fifty-one million, two hundred fifty-two thousand, seven hundred seventy-five".