73666366776324 has 144 divisors (see below), whose sum is σ = 214162869473280. Its totient is φ = 20914532271360.

The previous prime is 73666366776323. The next prime is 73666366776347. The reversal of 73666366776324 is 42367766366637.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (73666366776323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24544114 + ... + 27381494.

It is an arithmetic number, because the mean of its divisors is an integer number (1487242149120).

Almost surely, 2^{73666366776324} 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 73666366776324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107081434736640).

73666366776324 is an abundant number, since it is smaller than the sum of its proper divisors (140496502696956).

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

73666366776324 is a wasteful number, since it uses less digits than its factorization.

73666366776324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838050 (or 2838045 counting only the distinct ones).

The product of its digits is 3456649728, while the sum is 72.

The spelling of 73666366776324 in words is "seventy-three trillion, six hundred sixty-six billion, three hundred sixty-six million, seven hundred seventy-six thousand, three hundred twenty-four".