25748668066 has 8 divisors (see below), whose sum is σ = 42134184144. Its totient is φ = 11703940020.

The previous prime is 25748668051. The next prime is 25748668069. The reversal of 25748668066 is 66086684752.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25748668066.

It is not an unprimeable number, because it can be changed into a prime (25748668069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585196980 + ... + 585197023.

It is an arithmetic number, because the mean of its divisors is an integer number (5266773018).

Almost surely, 2^25748668066 is an apocalyptic number.

25748668066 is a deficient number, since it is larger than the sum of its proper divisors (16385516078).

25748668066 is a wasteful number, since it uses less digits than its factorization.

25748668066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170394016.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 25748668066 in words is "twenty-five billion, seven hundred forty-eight million, six hundred sixty-eight thousand, sixty-six".