20492555529406 has 4 divisors (see below), whose sum is σ = 30738833294112. Its totient is φ = 10246277764702.

The previous prime is 20492555529403. The next prime is 20492555529443. The reversal of 20492555529406 is 60492555529402.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492555529403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5123138882350 + ... + 5123138882353.

It is an arithmetic number, because the mean of its divisors is an integer number (7684708323528).

Almost surely, 2^{20492555529406} is an apocalyptic number.

20492555529406 is a deficient number, since it is larger than the sum of its proper divisors (10246277764706).

20492555529406 is a wasteful number, since it uses less digits than its factorization.

20492555529406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10246277764705.

The product of its (nonzero) digits is 38880000, while the sum is 58.

The spelling of 20492555529406 in words is "twenty trillion, four hundred ninety-two billion, five hundred fifty-five million, five hundred twenty-nine thousand, four hundred six".