20662024642 has 8 divisors (see below), whose sum is σ = 35420613696. Its totient is φ = 8855153412.

The previous prime is 20662024597. The next prime is 20662024657. The reversal of 20662024642 is 24642026602.

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 = 20662024598 and 20662024607.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 737929438 + ... + 737929465.

It is an arithmetic number, because the mean of its divisors is an integer number (4427576712).

Almost surely, 2^20662024642 is an apocalyptic number.

20662024642 is a deficient number, since it is larger than the sum of its proper divisors (14758589054).

20662024642 is a wasteful number, since it uses less digits than its factorization.

20662024642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475858912.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 20662024642 in words is "twenty billion, six hundred sixty-two million, twenty-four thousand, six hundred forty-two".