20246662642 has 8 divisors (see below), whose sum is σ = 30405351600. Its totient is φ = 10111545444.

The previous prime is 20246662627. The next prime is 20246662661. The reversal of 20246662642 is 24626664202.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20246662595 and 20246662604.

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, 5890792 + ... + 5894227.

It is an arithmetic number, because the mean of its divisors is an integer number (3800668950).

Almost surely, 2^20246662642 is an apocalyptic number.

20246662642 is a deficient number, since it is larger than the sum of its proper divisors (10158688958).

20246662642 is a wasteful number, since it uses less digits than its factorization.

20246662642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11785880.

The product of its (nonzero) digits is 331776, while the sum is 40.

It can be divided in two parts, 2024 and 6662642, that added together give a palindrome (6664666).

The spelling of 20246662642 in words is "twenty billion, two hundred forty-six million, six hundred sixty-two thousand, six hundred forty-two".