25616136117642 has 16 divisors (see below), whose sum is σ = 58551168268992. Its totient is φ = 7318896033600.

The previous prime is 25616136117641. The next prime is 25616136117653. The reversal of 25616136117642 is 24671163161652.

It is not an unprimeable number, because it can be changed into a prime (25616136117641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304954001359 + ... + 304954001442.

It is an arithmetic number, because the mean of its divisors is an integer number (3659448016812).

Almost surely, 2^{25616136117642} is an apocalyptic number.

25616136117642 is an abundant number, since it is smaller than the sum of its proper divisors (32935032151350).

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

25616136117642 is a wasteful number, since it uses less digits than its factorization.

25616136117642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609908002813.

The product of its digits is 2177280, while the sum is 51.

The spelling of 25616136117642 in words is "twenty-five trillion, six hundred sixteen billion, one hundred thirty-six million, one hundred seventeen thousand, six hundred forty-two".