20600444642 has 8 divisors (see below), whose sum is σ = 30929739456. Its totient is φ = 10290531492.

The previous prime is 20600444639. The next prime is 20600444647. The reversal of 20600444642 is 24644400602.

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 = 20600444599 and 20600444608.

It is not an unprimeable number, because it can be changed into a prime (20600444647) 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 3 ways as a sum of consecutive naturals, for example, 4842758 + ... + 4847009.

It is an arithmetic number, because the mean of its divisors is an integer number (3866217432).

Almost surely, 2^20600444642 is an apocalyptic number.

20600444642 is a deficient number, since it is larger than the sum of its proper divisors (10329294814).

20600444642 is a wasteful number, since it uses less digits than its factorization.

20600444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690832.

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 20600444642 in words is "twenty billion, six hundred million, four hundred forty-four thousand, six hundred forty-two".