25620411651611 has 8 divisors (see below), whose sum is σ = 29296153639680. Its totient is φ = 21948590458728.

The previous prime is 25620411651577. The next prime is 25620411651647. The reversal of 25620411651611 is 11615611402652.

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 25620411651611 - 2³⁰ = 25619337909787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25620411651691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980184791 + ... + 980210928.

It is an arithmetic number, because the mean of its divisors is an integer number (3662019204960).

Almost surely, 2^{25620411651611} is an apocalyptic number.

25620411651611 is a deficient number, since it is larger than the sum of its proper divisors (3675741988069).

25620411651611 is a wasteful number, since it uses less digits than its factorization.

25620411651611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960397593.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 25620411651611 in words is "twenty-five trillion, six hundred twenty billion, four hundred eleven million, six hundred fifty-one thousand, six hundred eleven".