1663293430 has 16 divisors (see below), whose sum is σ = 3170041920. Its totient is φ = 626180992.

The previous prime is 1663293397. The next prime is 1663293431. The reversal of 1663293430 is 343923661.

It is a self number, because there is not a number n which added to its sum of digits gives 1663293430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663293431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4891870 + ... + 4892209.

It is an arithmetic number, because the mean of its divisors is an integer number (198127620).

Almost surely, 2^1663293430 is an apocalyptic number.

1663293430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663293430 is a deficient number, since it is larger than the sum of its proper divisors (1506748490).

1663293430 is a wasteful number, since it uses less digits than its factorization.

1663293430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784103.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 1663293430 is about 40783.4945780766. The cubic root of 1663293430 is about 1184.8306783893.

The spelling of 1663293430 in words is "one billion, six hundred sixty-three million, two hundred ninety-three thousand, four hundred thirty".