980772666 has 64 divisors (see below), whose sum is σ = 2125516800. Its totient is φ = 300744576.

The previous prime is 980772649. The next prime is 980772673. The reversal of 980772666 is 666277089.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556695 + ... + 558453.

It is an arithmetic number, because the mean of its divisors is an integer number (33211200).

Almost surely, 2^980772666 is an apocalyptic number.

980772666 is an abundant number, since it is smaller than the sum of its proper divisors (1144744134).

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

980772666 is a wasteful number, since it uses less digits than its factorization.

980772666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 980772666 is about 31317.2902084456. The cubic root of 980772666 is about 993.5493674784.

The spelling of 980772666 in words is "nine hundred eighty million, seven hundred seventy-two thousand, six hundred sixty-six".