16663413020 has 24 divisors (see below), whose sum is σ = 35027890800. Its totient is φ = 6658751232.

The previous prime is 16663413017. The next prime is 16663413023. The reversal of 16663413020 is 2031436661.

It is an interprime number because it is at equal distance from previous prime (16663413017) and next prime (16663413023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16663413023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392690 + ... + 433049.

It is an arithmetic number, because the mean of its divisors is an integer number (1459495450).

Almost surely, 2^16663413020 is an apocalyptic number.

16663413020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16663413020 is an abundant number, since it is smaller than the sum of its proper divisors (18364477780).

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

16663413020 is a wasteful number, since it uses less digits than its factorization.

16663413020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826757 (or 826755 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 16663413020 its reverse (2031436661), we get a palindrome (18694849681).

The spelling of 16663413020 in words is "sixteen billion, six hundred sixty-three million, four hundred thirteen thousand, twenty".