73501372220 has 12 divisors (see below), whose sum is σ = 154352881704. Its totient is φ = 29400548880.

The previous prime is 73501372213. The next prime is 73501372237. The reversal of 73501372220 is 2227310537.

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 3 ways as a sum of consecutive naturals, for example, 1837534286 + ... + 1837534325.

It is an arithmetic number, because the mean of its divisors is an integer number (12862740142).

Almost surely, 2^73501372220 is an apocalyptic number.

It is an amenable number.

73501372220 is an abundant number, since it is smaller than the sum of its proper divisors (80851509484).

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

73501372220 is a wasteful number, since it uses less digits than its factorization.

73501372220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675068620 (or 3675068618 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

Adding to 73501372220 its reverse (2227310537), we get a palindrome (75728682757).

The spelling of 73501372220 in words is "seventy-three billion, five hundred one million, three hundred seventy-two thousand, two hundred twenty".