73663850220 has 96 divisors (see below), whose sum is σ = 218942958528. Its totient is φ = 18441510912.

The previous prime is 73663850213. The next prime is 73663850233. The reversal of 73663850220 is 2205836637.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313984 + ... + 495896.

It is an arithmetic number, because the mean of its divisors is an integer number (2280655818).

Almost surely, 2^73663850220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73663850220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109471479264).

73663850220 is an abundant number, since it is smaller than the sum of its proper divisors (145279108308).

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

73663850220 is a wasteful number, since it uses less digits than its factorization.

73663850220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182339 (or 182337 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 73663850220 in words is "seventy-three billion, six hundred sixty-three million, eight hundred fifty thousand, two hundred twenty".