25556541342416 has 40 divisors (see below), whose sum is σ = 56648005307520. Its totient is φ = 10941476805504.

The previous prime is 25556541342347. The next prime is 25556541342427. The reversal of 25556541342416 is 61424314565552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117876911 + ... + 118093518.

It is an arithmetic number, because the mean of its divisors is an integer number (1416200132688).

Almost surely, 2^{25556541342416} is an apocalyptic number.

It is an amenable number.

25556541342416 is an abundant number, since it is smaller than the sum of its proper divisors (31091463965104).

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

25556541342416 is a wasteful number, since it uses less digits than its factorization.

25556541342416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235971411 (or 235971405 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 53.

The spelling of 25556541342416 in words is "twenty-five trillion, five hundred fifty-six billion, five hundred forty-one million, three hundred forty-two thousand, four hundred sixteen".