25103144066 has 96 divisors (see below), whose sum is σ = 51307344000. Its totient is φ = 8944266240.

The previous prime is 25103144057. The next prime is 25103144089. The reversal of 25103144066 is 66044130152.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2832410 + ... + 2841258.

It is an arithmetic number, because the mean of its divisors is an integer number (534451500).

Almost surely, 2^25103144066 is an apocalyptic number.

25103144066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25103144066 is an abundant number, since it is smaller than the sum of its proper divisors (26204199934).

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

25103144066 is a wasteful number, since it uses less digits than its factorization.

25103144066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004 (or 8991 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 25103144066 in words is "twenty-five billion, one hundred three million, one hundred forty-four thousand, sixty-six".