20066624442 has 24 divisors (see below), whose sum is σ = 43484147616. Its totient is φ = 6687880776.

The previous prime is 20066624399. The next prime is 20066624531. The reversal of 20066624442 is 24442666002.

It is a super-2 number, since 2×20066624442² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20066624397 and 20066624406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47163 + ... + 205809.

It is an arithmetic number, because the mean of its divisors is an integer number (1811839484).

Almost surely, 2^20066624442 is an apocalyptic number.

20066624442 is an abundant number, since it is smaller than the sum of its proper divisors (23417523174).

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

20066624442 is a wasteful number, since it uses less digits than its factorization.

20066624442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165682 (or 165679 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 20066624442 in words is "twenty billion, sixty-six million, six hundred twenty-four thousand, four hundred forty-two".