20663247190 has 8 divisors (see below), whose sum is σ = 37193844960. Its totient is φ = 8265298872.

The previous prime is 20663247181. The next prime is 20663247313. The reversal of 20663247190 is 9174236602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20663247190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033162350 + ... + 1033162369.

It is an arithmetic number, because the mean of its divisors is an integer number (4649230620).

Almost surely, 2^20663247190 is an apocalyptic number.

20663247190 is a deficient number, since it is larger than the sum of its proper divisors (16530597770).

20663247190 is a wasteful number, since it uses less digits than its factorization.

20663247190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066324726.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 20663247190 in words is "twenty billion, six hundred sixty-three million, two hundred forty-seven thousand, one hundred ninety".