1663111802 has 16 divisors (see below), whose sum is σ = 2881541952. Its totient is φ = 711491520.

The previous prime is 1663111783. The next prime is 1663111831. The reversal of 1663111802 is 2081113661.

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 7 ways as a sum of consecutive naturals, for example, 2223038 + ... + 2223785.

It is an arithmetic number, because the mean of its divisors is an integer number (180096372).

Almost surely, 2^1663111802 is an apocalyptic number.

1663111802 is a deficient number, since it is larger than the sum of its proper divisors (1218430150).

1663111802 is a wasteful number, since it uses less digits than its factorization.

1663111802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446853.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1663111802 is about 40781.2677831379. The cubic root of 1663111802 is about 1184.7875498476.

The spelling of 1663111802 in words is "one billion, six hundred sixty-three million, one hundred eleven thousand, eight hundred two".