162155550 has 24 divisors (see below), whose sum is σ = 402146136. Its totient is φ = 43241440.

The previous prime is 162155549. The next prime is 162155573. The reversal of 162155550 is 55551261.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540369 + ... + 540668.

It is an arithmetic number, because the mean of its divisors is an integer number (16756089).

Almost surely, 2^162155550 is an apocalyptic number.

162155550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162155550 is an abundant number, since it is smaller than the sum of its proper divisors (239990586).

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

162155550 is a wasteful number, since it uses less digits than its factorization.

162155550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081052 (or 1081047 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 162155550 is about 12734.0311763400. The cubic root of 162155550 is about 545.3105992632.

The spelling of 162155550 in words is "one hundred sixty-two million, one hundred fifty-five thousand, five hundred fifty".