20405040500600 has 48 divisors (see below), whose sum is σ = 54219107619600. Its totient is φ = 6996013885440.

The previous prime is 20405040500591. The next prime is 20405040500617. The reversal of 20405040500600 is 600504050402.

It is a super-2 number, since 2×20405040500600² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20405040500600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7287513065 + ... + 7287515864.

It is an arithmetic number, because the mean of its divisors is an integer number (1129564742075).

Almost surely, 2^{20405040500600} is an apocalyptic number.

20405040500600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20405040500600 is an abundant number, since it is smaller than the sum of its proper divisors (33814067119000).

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

20405040500600 is a wasteful number, since it uses less digits than its factorization.

20405040500600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14575028952 (or 14575028943 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20405040500600 in words is "twenty trillion, four hundred five billion, forty million, five hundred thousand, six hundred".