2166927732 has 36 divisors (see below), whose sum is σ = 5765803680. Its totient is φ = 684292752.

The previous prime is 2166927691. The next prime is 2166927733. The reversal of 2166927732 is 2377296612.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166927733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1583328 + ... + 1584695.

Almost surely, 2^2166927732 is an apocalyptic number.

It is an amenable number.

2166927732 is an abundant number, since it is smaller than the sum of its proper divisors (3598875948).

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

2166927732 is a wasteful number, since it uses less digits than its factorization.

2166927732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168052 (or 3168047 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 2166927732 is about 46550.2710196192. The cubic root of 2166927732 is about 1294.0413156775.

The spelling of 2166927732 in words is "two billion, one hundred sixty-six million, nine hundred twenty-seven thousand, seven hundred thirty-two".