20266020402042 has 16 divisors (see below), whose sum is σ = 40593360087072. Its totient is φ = 6745120253520.

The previous prime is 20266020402031. The next prime is 20266020402053. The reversal of 20266020402042 is 24020402066202.

It is an interprime number because it is at equal distance from previous prime (20266020402031) and next prime (20266020402053).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554965828 + ... + 2554973759.

It is an arithmetic number, because the mean of its divisors is an integer number (2537085005442).

Almost surely, 2^{20266020402042} is an apocalyptic number.

20266020402042 is an abundant number, since it is smaller than the sum of its proper divisors (20327339685030).

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

20266020402042 is a wasteful number, since it uses less digits than its factorization.

20266020402042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109940253.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20266020402042 its reverse (24020402066202), we get a palindrome (44286422468244).

The spelling of 20266020402042 in words is "twenty trillion, two hundred sixty-six billion, twenty million, four hundred two thousand, forty-two".