2665114788 has 96 divisors (see below), whose sum is σ = 7520808960. Its totient is φ = 718058880.

The previous prime is 2665114787. The next prime is 2665114807. The reversal of 2665114788 is 8874115662.

It is not an unprimeable number, because it can be changed into a prime (2665114787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127458 + ... + 146886.

It is an arithmetic number, because the mean of its divisors is an integer number (78341760).

Almost surely, 2^2665114788 is an apocalyptic number.

2665114788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665114788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3760404480).

2665114788 is an abundant number, since it is smaller than the sum of its proper divisors (4855694172).

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

2665114788 is a wasteful number, since it uses less digits than its factorization.

2665114788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19537 (or 19535 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 2665114788 is about 51624.7497621054. The cubic root of 2665114788 is about 1386.4534933594.

The spelling of 2665114788 in words is "two billion, six hundred sixty-five million, one hundred fourteen thousand, seven hundred eighty-eight".