990655966 has 8 divisors (see below), whose sum is σ = 1514021544. Its totient is φ = 485982120.

The previous prime is 990655951. The next prime is 990655987. The reversal of 990655966 is 669556099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672800 + ... + 4673011.

It is an arithmetic number, because the mean of its divisors is an integer number (189252693).

Almost surely, 2^990655966 is an apocalyptic number.

990655966 is a deficient number, since it is larger than the sum of its proper divisors (523365578).

990655966 is a wasteful number, since it uses less digits than its factorization.

990655966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345866.

The product of its (nonzero) digits is 3936600, while the sum is 55.

The square root of 990655966 is about 31474.6877029781. The cubic root of 990655966 is about 996.8755701048.

The spelling of 990655966 in words is "nine hundred ninety million, six hundred fifty-five thousand, nine hundred sixty-six".