165729792614399 has 4 divisors (see below), whose sum is σ = 178478238200136. Its totient is φ = 152981347028664.

The previous prime is 165729792614363. The next prime is 165729792614459. The reversal of 165729792614399 is 993416297927561.

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

It is a cyclic number.

It is not a de Polignac number, because 165729792614399 - 2¹² = 165729792610303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165729792614329) 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, 6374222792849 + ... + 6374222792874.

It is an arithmetic number, because the mean of its divisors is an integer number (44619559550034).

Almost surely, 2^{165729792614399} is an apocalyptic number.

165729792614399 is a deficient number, since it is larger than the sum of its proper divisors (12748445585737).

165729792614399 is a wasteful number, since it uses less digits than its factorization.

165729792614399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12748445585736.

The product of its digits is 2777664960, while the sum is 80.

The spelling of 165729792614399 in words is "one hundred sixty-five trillion, seven hundred twenty-nine billion, seven hundred ninety-two million, six hundred fourteen thousand, three hundred ninety-nine".