1662635056 has 20 divisors (see below), whose sum is σ = 3239357400. Its totient is φ = 826671872.

The previous prime is 1662635041. The next prime is 1662635089. The reversal of 1662635056 is 6505362661.

It is a happy number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287401 + ... + 293128.

It is an arithmetic number, because the mean of its divisors is an integer number (161967870).

Almost surely, 2^1662635056 is an apocalyptic number.

1662635056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1662635056 is a deficient number, since it is larger than the sum of its proper divisors (1576722344).

1662635056 is a wasteful number, since it uses less digits than its factorization.

1662635056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580716 (or 580710 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 1662635056 is about 40775.4222050490. The cubic root of 1662635056 is about 1184.6743290156.

The spelling of 1662635056 in words is "one billion, six hundred sixty-two million, six hundred thirty-five thousand, fifty-six".