165554498755 has 16 divisors (see below), whose sum is σ = 207387682560. Its totient is φ = 126633446368.

The previous prime is 165554498729. The next prime is 165554498779. The reversal of 165554498755 is 557894455561.

It is a de Polignac number, because none of the positive numbers 2^k-165554498755 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9937 + ... + 575506.

It is an arithmetic number, because the mean of its divisors is an integer number (12961730160).

Almost surely, 2^165554498755 is an apocalyptic number.

165554498755 is a deficient number, since it is larger than the sum of its proper divisors (41833183805).

165554498755 is a wasteful number, since it uses less digits than its factorization.

165554498755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587930.

The product of its digits is 151200000, while the sum is 64.

The spelling of 165554498755 in words is "one hundred sixty-five billion, five hundred fifty-four million, four hundred ninety-eight thousand, seven hundred fifty-five".