1956662646 has 8 divisors (see below), whose sum is σ = 3913325304. Its totient is φ = 652220880.

The previous prime is 1956662641. The next prime is 1956662663. The reversal of 1956662646 is 6462666591.

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

1956662646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956662641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163055215 + ... + 163055226.

It is an arithmetic number, because the mean of its divisors is an integer number (489165663).

Almost surely, 2^1956662646 is an apocalyptic number.

1956662646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1956662646 is a wasteful number, since it uses less digits than its factorization.

1956662646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326110446.

The product of its digits is 2799360, while the sum is 51.

The square root of 1956662646 is about 44234.1796126027. The cubic root of 1956662646 is about 1250.7542426163.

The spelling of 1956662646 in words is "one billion, nine hundred fifty-six million, six hundred sixty-two thousand, six hundred forty-six".