9655420644 has 135 divisors (see below), whose sum is σ = 25978607193. Its totient is φ = 3127089888.

The previous prime is 9655420609. The next prime is 9655420679. The reversal of 9655420644 is 4460245569.

The square root of 9655420644 is 98262.

It is a perfect power (a square), and thus also a powerful number.

9655420644 is a `hidden beast` number, since 9 + 65 + 542 + 0 + 6 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (9655420609) and next prime (9655420679).

It can be written as a sum of positive squares in only one way, i.e., 6960564900 + 2694855744 = 83430^2 + 51912^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9655420644.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 93741897 + ... + 93741999.

Almost surely, 2^9655420644 is an apocalyptic number.

9655420644 is the 98262-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9655420644

9655420644 is an abundant number, since it is smaller than the sum of its proper divisors (16323186549).

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

9655420644 is a wasteful number, since it uses less digits than its factorization.

9655420644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The cubic root of 9655420644 is about 2129.3991004808.

The spelling of 9655420644 in words is "nine billion, six hundred fifty-five million, four hundred twenty thousand, six hundred forty-four".