1662446503656 has 64 divisors (see below), whose sum is σ = 4696176600000. Its totient is φ = 544756477248.

The previous prime is 1662446503649. The next prime is 1662446503699. The reversal of 1662446503656 is 6563056442661.

1662446503656 is a `hidden beast` number, since 1 + 6 + 624 + 4 + 6 + 5 + 0 + 3 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65211931 + ... + 65237418.

It is an arithmetic number, because the mean of its divisors is an integer number (73377759375).

Almost surely, 2^{1662446503656} is an apocalyptic number.

It is an amenable number.

1662446503656 is an abundant number, since it is smaller than the sum of its proper divisors (3033730096344).

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

1662446503656 is a wasteful number, since it uses less digits than its factorization.

1662446503656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130449423 (or 130449413 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 1662446503656 in words is "one trillion, six hundred sixty-two billion, four hundred forty-six million, five hundred three thousand, six hundred fifty-six".