985652664 has 64 divisors (see below), whose sum is σ = 2626752000. Its totient is φ = 307307520.

The previous prime is 985652663. The next prime is 985652671. The reversal of 985652664 is 466256589.

It is a super-2 number, since 2×985652664² = 1943022348100593792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985652663) 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, 22344 + ... + 49704.

It is an arithmetic number, because the mean of its divisors is an integer number (41043000).

Almost surely, 2^985652664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985652664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313376000).

985652664 is an abundant number, since it is smaller than the sum of its proper divisors (1641099336).

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

985652664 is a wasteful number, since it uses less digits than its factorization.

985652664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27468 (or 27464 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The square root of 985652664 is about 31395.1057332190. The cubic root of 985652664 is about 995.1944988159.

The spelling of 985652664 in words is "nine hundred eighty-five million, six hundred fifty-two thousand, six hundred sixty-four".