165158280 has 96 divisors (see below), whose sum is σ = 613454400. Its totient is φ = 37749888.

The previous prime is 165158267. The next prime is 165158327. The reversal of 165158280 is 82851561.

165158280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 30250 + ... + 35289.

It is an arithmetic number, because the mean of its divisors is an integer number (6390150).

Almost surely, 2^165158280 is an apocalyptic number.

165158280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165158280 is an abundant number, since it is smaller than the sum of its proper divisors (448296120).

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

165158280 is a wasteful number, since it uses less digits than its factorization.

165158280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65563 (or 65556 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 165158280 is about 12851.3921424879. The cubic root of 165158280 is about 548.6559800384.

The spelling of 165158280 in words is "one hundred sixty-five million, one hundred fifty-eight thousand, two hundred eighty".