25036166216 has 16 divisors (see below), whose sum is σ = 47006864700. Its totient is φ = 12501002304.

The previous prime is 25036166201. The next prime is 25036166219. The reversal of 25036166216 is 61266163052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20337612100 + 4698554116 = 142610^2 + 68546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25036166216.

It is not an unprimeable number, because it can be changed into a prime (25036166219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128871 + ... + 2140598.

Almost surely, 2^25036166216 is an apocalyptic number.

It is an amenable number.

25036166216 is a deficient number, since it is larger than the sum of its proper divisors (21970698484).

25036166216 is a wasteful number, since it uses less digits than its factorization.

25036166216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270208 (or 4270204 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 25036166216 in words is "twenty-five billion, thirty-six million, one hundred sixty-six thousand, two hundred sixteen".