165975165010 has 48 divisors (see below), whose sum is σ = 306545316480. Its totient is φ = 64684309760.

The previous prime is 165975164977. The next prime is 165975165043. The reversal of 165975165010 is 10561579561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165975164977) and next prime (165975165043).

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, 7522695 + ... + 7544725.

It is an arithmetic number, because the mean of its divisors is an integer number (6386360760).

Almost surely, 2^165975165010 is an apocalyptic number.

165975165010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165975165010 is a deficient number, since it is larger than the sum of its proper divisors (140570151470).

165975165010 is a wasteful number, since it uses less digits than its factorization.

165975165010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323 (or 22210 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 46.

The spelling of 165975165010 in words is "one hundred sixty-five billion, nine hundred seventy-five million, one hundred sixty-five thousand, ten".