38561544220 has 24 divisors (see below), whose sum is σ = 81028007424. Its totient is φ = 15415329216.

The previous prime is 38561544173. The next prime is 38561544253. The reversal of 38561544220 is 2244516583.

38561544220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 546439 + ... + 612958.

It is an arithmetic number, because the mean of its divisors is an integer number (3376166976).

Almost surely, 2^38561544220 is an apocalyptic number.

It is an amenable number.

38561544220 is an abundant number, since it is smaller than the sum of its proper divisors (42466463204).

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

38561544220 is a wasteful number, since it uses less digits than its factorization.

38561544220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161069 (or 1161067 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 38561544220 in words is "thirty-eight billion, five hundred sixty-one million, five hundred forty-four thousand, two hundred twenty".