25655193466 has 64 divisors (see below), whose sum is σ = 46593146880. Its totient is φ = 10361520000.

The previous prime is 25655193449. The next prime is 25655193491. The reversal of 25655193466 is 66439155652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13148791 + ... + 13150741.

It is an arithmetic number, because the mean of its divisors is an integer number (728017920).

Almost surely, 2^25655193466 is an apocalyptic number.

25655193466 is a deficient number, since it is larger than the sum of its proper divisors (20937953414).

25655193466 is a wasteful number, since it uses less digits than its factorization.

25655193466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its digits is 5832000, while the sum is 52.

The spelling of 25655193466 in words is "twenty-five billion, six hundred fifty-five million, one hundred ninety-three thousand, four hundred sixty-six".