25430315660000 has 120 divisors (see below), whose sum is σ = 63443555051184. Its totient is φ = 10028856320000.

The previous prime is 25430315659951. The next prime is 25430315660017. The reversal of 25430315660000 is 6651303452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7534337 + ... + 10374336.

Almost surely, 2^{25430315660000} is an apocalyptic number.

25430315660000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25430315660000 is an abundant number, since it is smaller than the sum of its proper divisors (38013239391184).

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

25430315660000 is an equidigital number, since it uses as much as digits as its factorization.

25430315660000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17908774 (or 17908751 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 25430315660000 its reverse (6651303452), we get a palindrome (25436966963452).

The spelling of 25430315660000 in words is "twenty-five trillion, four hundred thirty billion, three hundred fifteen million, six hundred sixty thousand".