25435666670 has 32 divisors (see below), whose sum is σ = 46450782720. Its totient is φ = 10026374400.

The previous prime is 25435666661. The next prime is 25435666699. The reversal of 25435666670 is 7666653452.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 882995 + ... + 911345.

It is an arithmetic number, because the mean of its divisors is an integer number (1451586960).

Almost surely, 2^25435666670 is an apocalyptic number.

25435666670 is a deficient number, since it is larger than the sum of its proper divisors (21015116050).

25435666670 is a wasteful number, since it uses less digits than its factorization.

25435666670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29660.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 25435666670 in words is "twenty-five billion, four hundred thirty-five million, six hundred sixty-six thousand, six hundred seventy".