8661366490 has 96 divisors (see below), whose sum is σ = 18584826624. Its totient is φ = 2846807040.

The previous prime is 8661366487. The next prime is 8661366523. The reversal of 8661366490 is 946631668.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9830850 + ... + 9831730.

It is an arithmetic number, because the mean of its divisors is an integer number (193591944).

Almost surely, 2^8661366490 is an apocalyptic number.

8661366490 is an abundant number, since it is smaller than the sum of its proper divisors (9923460134).

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

8661366490 is a wasteful number, since it uses less digits than its factorization.

8661366490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 8661366490 is about 93066.4627564624. The cubic root of 8661366490 is about 2053.6612335863.

The spelling of 8661366490 in words is "eight billion, six hundred sixty-one million, three hundred sixty-six thousand, four hundred ninety".