1663374372 has 48 divisors (see below), whose sum is σ = 4267425792. Its totient is φ = 500078880.

The previous prime is 1663374359. The next prime is 1663374389. The reversal of 1663374372 is 2734733661.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32848 + ... + 66375.

It is an arithmetic number, because the mean of its divisors is an integer number (88904704).

Almost surely, 2^1663374372 is an apocalyptic number.

1663374372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1663374372 is an abundant number, since it is smaller than the sum of its proper divisors (2604051420).

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

1663374372 is a wasteful number, since it uses less digits than its factorization.

1663374372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99368 (or 99366 counting only the distinct ones).

The product of its digits is 381024, while the sum is 42.

The square root of 1663374372 is about 40784.4869037236. The cubic root of 1663374372 is about 1184.8498974895.

The spelling of 1663374372 in words is "one billion, six hundred sixty-three million, three hundred seventy-four thousand, three hundred seventy-two".