25206660160 has 56 divisors (see below), whose sum is σ = 65480037696. Its totient is φ = 9166056960.

The previous prime is 25206660131. The next prime is 25206660163. The reversal of 25206660160 is 6106660252.

It is not an unprimeable number, because it can be changed into a prime (25206660163) 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, 3576972 + ... + 3584011.

Almost surely, 2^25206660160 is an apocalyptic number.

25206660160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25206660160 is an abundant number, since it is smaller than the sum of its proper divisors (40273377536).

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

25206660160 is a wasteful number, since it uses less digits than its factorization.

25206660160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161011 (or 7161001 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 25206660160 in words is "twenty-five billion, two hundred six million, six hundred sixty thousand, one hundred sixty".