165450276457 has 4 divisors (see below), whose sum is σ = 165535081216. Its totient is φ = 165365471700.

The previous prime is 165450276353. The next prime is 165450276479. The reversal of 165450276457 is 754672054561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165450276457 - 2²⁷ = 165316058729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165450276487) 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, 42399453 + ... + 42403354.

It is an arithmetic number, because the mean of its divisors is an integer number (41383770304).

Almost surely, 2^165450276457 is an apocalyptic number.

It is an amenable number.

165450276457 is a deficient number, since it is larger than the sum of its proper divisors (84804759).

165450276457 is an equidigital number, since it uses as much as digits as its factorization.

165450276457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84804758.

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 165450276457 in words is "one hundred sixty-five billion, four hundred fifty million, two hundred seventy-six thousand, four hundred fifty-seven".