165161310 has 16 divisors (see below), whose sum is σ = 396387216. Its totient is φ = 44043008.

The previous prime is 165161299. The next prime is 165161317. The reversal of 165161310 is 13161561.

165161310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165161310² = 54556516641832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165161317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752659 + ... + 2752718.

It is an arithmetic number, because the mean of its divisors is an integer number (24774201).

Almost surely, 2^165161310 is an apocalyptic number.

165161310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165161310 is an abundant number, since it is smaller than the sum of its proper divisors (231225906).

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

165161310 is a wasteful number, since it uses less digits than its factorization.

165161310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505387.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 165161310 is about 12851.5100280084. The cubic root of 165161310 is about 548.6593352390.

The spelling of 165161310 in words is "one hundred sixty-five million, one hundred sixty-one thousand, three hundred ten".