25566156510150 has 96 divisors (see below), whose sum is σ = 64349762601600. Its totient is φ = 6716419578880.

The previous prime is 25566156510143. The next prime is 25566156510221. The reversal of 25566156510150 is 5101565166552.

It is a self number, because there is not a number n which added to its sum of digits gives 25566156510150.

It is a congruent number.

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, 1486201 + ... + 7303499.

It is an arithmetic number, because the mean of its divisors is an integer number (670310027100).

Almost surely, 2^{25566156510150} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25566156510150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32174881300800).

25566156510150 is an abundant number, since it is smaller than the sum of its proper divisors (38783606091450).

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

25566156510150 is a wasteful number, since it uses less digits than its factorization.

25566156510150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817750 (or 5817745 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 48.

The spelling of 25566156510150 in words is "twenty-five trillion, five hundred sixty-six billion, one hundred fifty-six million, five hundred ten thousand, one hundred fifty".