25266374466 has 16 divisors (see below), whose sum is σ = 50536272288. Its totient is φ = 8421537600.

The previous prime is 25266374369. The next prime is 25266374473. The reversal of 25266374466 is 66447366252.

It is a super-2 number, since 2×25266374466² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 48520 + ... + 229971.

It is an arithmetic number, because the mean of its divisors is an integer number (3158517018).

Almost surely, 2^25266374466 is an apocalyptic number.

25266374466 is an abundant number, since it is smaller than the sum of its proper divisors (25269897822).

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

25266374466 is a wasteful number, since it uses less digits than its factorization.

25266374466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293617.

The product of its digits is 8709120, while the sum is 51.

The spelling of 25266374466 in words is "twenty-five billion, two hundred sixty-six million, three hundred seventy-four thousand, four hundred sixty-six".