2665115651000 has 64 divisors (see below), whose sum is σ = 6803313435360. Its totient is φ = 969132960000.

The previous prime is 2665115650987. The next prime is 2665115651017. The reversal of 2665115651000 is 1565115662.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 121130621 + ... + 121152620.

Almost surely, 2^{2665115651000} is an apocalyptic number.

2665115651000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665115651000 is an abundant number, since it is smaller than the sum of its proper divisors (4138197784360).

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

2665115651000 is a wasteful number, since it uses less digits than its factorization.

2665115651000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242283273 (or 242283259 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

It can be divided in two parts, 26651 and 15651000, that added together give a palindrome (15677651).

The spelling of 2665115651000 in words is "two trillion, six hundred sixty-five billion, one hundred fifteen million, six hundred fifty-one thousand".