165055405455052 has 72 divisors (see below), whose sum is σ = 356351065598304. Its totient is φ = 66468361010688.

The previous prime is 165055405455019. The next prime is 165055405455079. The reversal of 165055405455052 is 250554504550561.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38362408 + ... + 42447439.

It is an arithmetic number, because the mean of its divisors is an integer number (4949320355532).

Almost surely, 2^{165055405455052} is an apocalyptic number.

It is an amenable number.

165055405455052 is an abundant number, since it is smaller than the sum of its proper divisors (191295660143252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165055405455052 is a wasteful number, since it uses less digits than its factorization.

165055405455052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80810495 (or 80810486 counting only the distinct ones).

The product of its (nonzero) digits is 15000000, while the sum is 52.

The spelling of 165055405455052 in words is "one hundred sixty-five trillion, fifty-five billion, four hundred five million, four hundred fifty-five thousand, fifty-two".