2165542632 has 96 divisors (see below), whose sum is σ = 6734988000. Its totient is φ = 621682560.

The previous prime is 2165542627. The next prime is 2165542657. The reversal of 2165542632 is 2362455612.

2165542632 is a `hidden beast` number, since 2 + 16 + 5 + 5 + 4 + 2 + 632 = 666.

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

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 23 ways as a sum of consecutive naturals, for example, 56907 + ... + 87002.

It is an arithmetic number, because the mean of its divisors is an integer number (70156125).

Almost surely, 2^2165542632 is an apocalyptic number.

2165542632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2165542632 is an abundant number, since it is smaller than the sum of its proper divisors (4569445368).

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

2165542632 is a wasteful number, since it uses less digits than its factorization.

2165542632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143951 (or 143944 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 2165542632 is about 46535.3911770386. The cubic root of 2165542632 is about 1293.7655398820.

The spelling of 2165542632 in words is "two billion, one hundred sixty-five million, five hundred forty-two thousand, six hundred thirty-two".