2501640522651 has 8 divisors (see below), whose sum is σ = 3335531318784. Its totient is φ = 1667755037480.

The previous prime is 2501640522643. The next prime is 2501640522659. The reversal of 2501640522651 is 1562250461052.

2501640522651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2501640522643) and next prime (2501640522659).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2501640522651 - 2³ = 2501640522643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2501640522659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54135 + ... + 2237456.

It is an arithmetic number, because the mean of its divisors is an integer number (416941414848).

Almost surely, 2^{2501640522651} is an apocalyptic number.

2501640522651 is a deficient number, since it is larger than the sum of its proper divisors (833890796133).

2501640522651 is a wasteful number, since it uses less digits than its factorization.

2501640522651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655481.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 2501640522651 in words is "two trillion, five hundred one billion, six hundred forty million, five hundred twenty-two thousand, six hundred fifty-one".