8251669560 has 64 divisors (see below), whose sum is σ = 24806016000. Its totient is φ = 2195911296.

The previous prime is 8251669501. The next prime is 8251669561. The reversal of 8251669560 is 659661528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251669561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12160 + ... + 129039.

It is an arithmetic number, because the mean of its divisors is an integer number (387594000).

Almost surely, 2^8251669560 is an apocalyptic number.

It is an amenable number.

8251669560 is an abundant number, since it is smaller than the sum of its proper divisors (16554346440).

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

8251669560 is a wasteful number, since it uses less digits than its factorization.

8251669560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141700 (or 141696 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 8251669560 is about 90838.7007833115. The cubic root of 8251669560 is about 2020.7563060202.

It can be divided in two parts, 82516 and 69560, that added together give a triangular number (152076 = T₅₅₁).

The spelling of 8251669560 in words is "eight billion, two hundred fifty-one million, six hundred sixty-nine thousand, five hundred sixty".