980866656 has 216 divisors, whose sum is σ = 3504835152. Its totient is φ = 254707200.

The previous prime is 980866643. The next prime is 980866669. The reversal of 980866656 is 656668089.

It is an interprime number because it is at equal distance from previous prime (980866643) and next prime (980866669).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 241926 + ... + 245946.

Almost surely, 2^980866656 is an apocalyptic number.

980866656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 980866656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752417576).

980866656 is an abundant number, since it is smaller than the sum of its proper divisors (2523968496).

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

980866656 is a wasteful number, since it uses less digits than its factorization.

980866656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 980866656 is about 31318.7907812546. The cubic root of 980866656 is about 993.5811046062.

The spelling of 980866656 in words is "nine hundred eighty million, eight hundred sixty-six thousand, six hundred fifty-six".