42020226646646 has 32 divisors (see below), whose sum is σ = 67090943554560. Its totient is φ = 19669752950400.

The previous prime is 42020226646633. The next prime is 42020226646661. The reversal of 42020226646646 is 64664662202024.

It is a junction number, because it is equal to n+sod(n) for n = 42020226646594 and 42020226646603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11536115 + ... + 14735073.

It is an arithmetic number, because the mean of its divisors is an integer number (2096591986080).

Almost surely, 2^{42020226646646} is an apocalyptic number.

42020226646646 is a deficient number, since it is larger than the sum of its proper divisors (25070716907914).

42020226646646 is a wasteful number, since it uses less digits than its factorization.

42020226646646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201020.

The product of its (nonzero) digits is 7962624, while the sum is 50.

The spelling of 42020226646646 in words is "forty-two trillion, twenty billion, two hundred twenty-six million, six hundred forty-six thousand, six hundred forty-six".