20003555436060 has 96 divisors (see below), whose sum is σ = 64435294006272. Its totient is φ = 4541961484800.

The previous prime is 20003555436037. The next prime is 20003555436071. The reversal of 20003555436060 is 6063455530002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157643577 + ... + 157770416.

It is an arithmetic number, because the mean of its divisors is an integer number (671200979232).

Almost surely, 2^{20003555436060} is an apocalyptic number.

20003555436060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003555436060 is an abundant number, since it is smaller than the sum of its proper divisors (44431738570212).

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

20003555436060 is a wasteful number, since it uses less digits than its factorization.

20003555436060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315414163 (or 315414161 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 20003555436060 in words is "twenty trillion, three billion, five hundred fifty-five million, four hundred thirty-six thousand, sixty".