1656494966 has 32 divisors (see below), whose sum is σ = 2898892800. Its totient is φ = 695182176.

The previous prime is 1656494953. The next prime is 1656494999. The reversal of 1656494966 is 6694946561.

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 15 ways as a sum of consecutive naturals, for example, 442595 + ... + 446321.

It is an arithmetic number, because the mean of its divisors is an integer number (90590400).

Almost surely, 2^1656494966 is an apocalyptic number.

1656494966 is a deficient number, since it is larger than the sum of its proper divisors (1242397834).

1656494966 is a wasteful number, since it uses less digits than its factorization.

1656494966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388.

The product of its digits is 8398080, while the sum is 56.

The square root of 1656494966 is about 40700.0610073253. The cubic root of 1656494966 is about 1183.2142010773.

The spelling of 1656494966 in words is "one billion, six hundred fifty-six million, four hundred ninety-four thousand, nine hundred sixty-six".