20452340116442 has 16 divisors (see below), whose sum is σ = 34104150269952. Its totient is φ = 9135040250160.

The previous prime is 20452340116433. The next prime is 20452340116457. The reversal of 20452340116442 is 24461104325402.

It is a junction number, because it is equal to n+sod(n) for n = 20452340116396 and 20452340116405.

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, 12687555098 + ... + 12687556709.

It is an arithmetic number, because the mean of its divisors is an integer number (2131509391872).

Almost surely, 2^{20452340116442} is an apocalyptic number.

20452340116442 is a deficient number, since it is larger than the sum of its proper divisors (13651810153510).

20452340116442 is a wasteful number, since it uses less digits than its factorization.

20452340116442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375111853.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 20452340116442 in words is "twenty trillion, four hundred fifty-two billion, three hundred forty million, one hundred sixteen thousand, four hundred forty-two".