165115075670 has 32 divisors (see below), whose sum is σ = 314977128768. Its totient is φ = 62104235008.

The previous prime is 165115075627. The next prime is 165115075693. The reversal of 165115075670 is 76570511561.

It is a congruent number.

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, 256202 + ... + 629181.

It is an arithmetic number, because the mean of its divisors is an integer number (9843035274).

Almost surely, 2^165115075670 is an apocalyptic number.

165115075670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165115075670 is a deficient number, since it is larger than the sum of its proper divisors (149862053098).

165115075670 is a wasteful number, since it uses less digits than its factorization.

165115075670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886504.

The product of its (nonzero) digits is 220500, while the sum is 44.

The spelling of 165115075670 in words is "one hundred sixty-five billion, one hundred fifteen million, seventy-five thousand, six hundred seventy".