20042422408015 has 24 divisors (see below), whose sum is σ = 27979374872880. Its totient is φ = 13742496407808.

The previous prime is 20042422408009. The next prime is 20042422408049. The reversal of 20042422408015 is 51080422424002.

It is a de Polignac number, because none of the positive numbers 2^k-20042422408015 is a prime.

It is a super-2 number, since 2×20042422408015² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1234231 + ... + 6450439.

It is an arithmetic number, because the mean of its divisors is an integer number (1165807286370).

Almost surely, 2^{20042422408015} is an apocalyptic number.

20042422408015 is a deficient number, since it is larger than the sum of its proper divisors (7936952464865).

20042422408015 is a wasteful number, since it uses less digits than its factorization.

20042422408015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231911 (or 5231904 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 34.

The spelling of 20042422408015 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred eight thousand, fifteen".