25660531342 has 8 divisors (see below), whose sum is σ = 38498832000. Its totient is φ = 12827587344.

The previous prime is 25660531313. The next prime is 25660531363. The reversal of 25660531342 is 24313506652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327167 + ... + 1346362.

It is an arithmetic number, because the mean of its divisors is an integer number (4812354000).

Almost surely, 2^25660531342 is an apocalyptic number.

25660531342 is a deficient number, since it is larger than the sum of its proper divisors (12838300658).

25660531342 is a wasteful number, since it uses less digits than its factorization.

25660531342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678330.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 25660531342 in words is "twenty-five billion, six hundred sixty million, five hundred thirty-one thousand, three hundred forty-two".