2640290166654 has 32 divisors (see below), whose sum is σ = 6053986676736. Its totient is φ = 751988903520.

The previous prime is 2640290166623. The next prime is 2640290166671. The reversal of 2640290166654 is 4566610920462.

It is a happy number.

It is a super-2 number, since 2×2640290166654² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2640290166597 and 2640290166606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99141342 + ... + 99167969.

It is an arithmetic number, because the mean of its divisors is an integer number (189187083648).

Almost surely, 2^{2640290166654} is an apocalyptic number.

2640290166654 is an abundant number, since it is smaller than the sum of its proper divisors (3413696510082).

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

2640290166654 is a wasteful number, since it uses less digits than its factorization.

2640290166654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198309640.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 2640290166654 in words is "two trillion, six hundred forty billion, two hundred ninety million, one hundred sixty-six thousand, six hundred fifty-four".