20420013043624 has 16 divisors (see below), whose sum is σ = 38287802221920. Its totient is φ = 10209932451120.

The previous prime is 20420013043613. The next prime is 20420013043649. The reversal of 20420013043624 is 42634031002402.

It is a super-2 number, since 2×20420013043624² (a number of 27 digits) contains 22 as substring.

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, 8078332 + ... + 10300459.

It is an arithmetic number, because the mean of its divisors is an integer number (2392987638870).

Almost surely, 2^{20420013043624} is an apocalyptic number.

It is an amenable number.

20420013043624 is a deficient number, since it is larger than the sum of its proper divisors (17867789178296).

20420013043624 is a wasteful number, since it uses less digits than its factorization.

20420013043624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18517680 (or 18517676 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The spelling of 20420013043624 in words is "twenty trillion, four hundred twenty billion, thirteen million, forty-three thousand, six hundred twenty-four".