2664869616 has 120 divisors (see below), whose sum is σ = 7878114816. Its totient is φ = 839583360.

The previous prime is 2664869609. The next prime is 2664869617. The reversal of 2664869616 is 6169684662.

2664869616 is a `hidden beast` number, since 2 + 66 + 486 + 96 + 16 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664869617) by changing a digit.

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, 185011 + ... + 198893.

Almost surely, 2^2664869616 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 2664869616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3939057408).

2664869616 is an abundant number, since it is smaller than the sum of its proper divisors (5213245200).

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

2664869616 is a wasteful number, since it uses less digits than its factorization.

2664869616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971 (or 13962 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 2664869616 is about 51622.3751487666. The cubic root of 2664869616 is about 1386.4109773670.

The spelling of 2664869616 in words is "two billion, six hundred sixty-four million, eight hundred sixty-nine thousand, six hundred sixteen".