2663331372 has 72 divisors (see below), whose sum is σ = 7282133040. Its totient is φ = 815875200.

The previous prime is 2663331337. The next prime is 2663331409. The reversal of 2663331372 is 2731333662.

2663331372 is a `hidden beast` number, since 2 + 6 + 633 + 3 + 13 + 7 + 2 = 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 (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94747 + ... + 119597.

Almost surely, 2^2663331372 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 2663331372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3641066520).

2663331372 is an abundant number, since it is smaller than the sum of its proper divisors (4618801668).

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

2663331372 is a wasteful number, since it uses less digits than its factorization.

2663331372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25103 (or 25098 counting only the distinct ones).

The product of its digits is 81648, while the sum is 36.

The square root of 2663331372 is about 51607.4739935990. The cubic root of 2663331372 is about 1386.1441664597.

The spelling of 2663331372 in words is "two billion, six hundred sixty-three million, three hundred thirty-one thousand, three hundred seventy-two".