20003555412606 has 16 divisors (see below), whose sum is σ = 40555153440144. Its totient is φ = 6576511368384.

The previous prime is 20003555412593. The next prime is 20003555412691. The reversal of 20003555412606 is 60621455530002.

It is a super-2 number, since 2×20003555412606² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 22835108481 + ... + 22835109356.

It is an arithmetic number, because the mean of its divisors is an integer number (2534697090009).

Almost surely, 2^{20003555412606} is an apocalyptic number.

20003555412606 is an abundant number, since it is smaller than the sum of its proper divisors (20551598027538).

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

20003555412606 is a wasteful number, since it uses less digits than its factorization.

20003555412606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45670217915.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 20003555412606 in words is "twenty trillion, three billion, five hundred fifty-five million, four hundred twelve thousand, six hundred six".