2163694032 has 100 divisors (see below), whose sum is σ = 6278273760. Its totient is φ = 719399232.

The previous prime is 2163693997. The next prime is 2163694033. The reversal of 2163694032 is 2304963612.

2163694032 is a `hidden beast` number, since 216 + 36 + 9 + 403 + 2 = 666.

It is a super-2 number, since 2×2163694032² = 9363143728224834048, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163694033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 567043 + ... + 570845.

Almost surely, 2^2163694032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163694032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3139136880).

2163694032 is an abundant number, since it is smaller than the sum of its proper divisors (4114579728).

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

2163694032 is a wasteful number, since it uses less digits than its factorization.

2163694032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262 (or 4247 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 2163694032 is about 46515.5246342552. The cubic root of 2163694032 is about 1293.3972971754.

The spelling of 2163694032 in words is "two billion, one hundred sixty-three million, six hundred ninety-four thousand, thirty-two".