1663014280 has 32 divisors (see below), whose sum is σ = 3870811800. Its totient is φ = 642267136.

The previous prime is 1663014277. The next prime is 1663014319. The reversal of 1663014280 is 824103661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1624251204 + 38763076 = 40302^2 + 6226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715657 + ... + 717976.

Almost surely, 2^1663014280 is an apocalyptic number.

1663014280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663014280 is an abundant number, since it is smaller than the sum of its proper divisors (2207797520).

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

1663014280 is a wasteful number, since it uses less digits than its factorization.

1663014280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433673 (or 1433669 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1663014280 is about 40780.0720941001. The cubic root of 1663014280 is about 1184.7643914306.

The spelling of 1663014280 in words is "one billion, six hundred sixty-three million, fourteen thousand, two hundred eighty".