9660025820 has 24 divisors (see below), whose sum is σ = 20486910528. Its totient is φ = 3825752000.

The previous prime is 9660025811. The next prime is 9660025891. The reversal of 9660025820 is 285200669.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389076 + ... + 2393115.

It is an arithmetic number, because the mean of its divisors is an integer number (853621272).

Almost surely, 2^9660025820 is an apocalyptic number.

It is an amenable number.

9660025820 is an abundant number, since it is smaller than the sum of its proper divisors (10826884708).

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

9660025820 is a wasteful number, since it uses less digits than its factorization.

9660025820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782301 (or 4782299 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 9660025820 is about 98285.4303546563. The cubic root of 9660025820 is about 2129.7375873394.

The spelling of 9660025820 in words is "nine billion, six hundred sixty million, twenty-five thousand, eight hundred twenty".