73733703666 has 16 divisors (see below), whose sum is σ = 168534179904. Its totient is φ = 21066772464.

The previous prime is 73733703661. The next prime is 73733703671. The reversal of 73733703666 is 66630733737.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73733703661) and next prime (73733703671).

It is not an unprimeable number, because it can be changed into a prime (73733703661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877782145 + ... + 877782228.

It is an arithmetic number, because the mean of its divisors is an integer number (10533386244).

Almost surely, 2^73733703666 is an apocalyptic number.

73733703666 is an abundant number, since it is smaller than the sum of its proper divisors (94800476238).

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

73733703666 is a wasteful number, since it uses less digits than its factorization.

73733703666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755564385.

The product of its (nonzero) digits is 6001128, while the sum is 51.

The spelling of 73733703666 in words is "seventy-three billion, seven hundred thirty-three million, seven hundred three thousand, six hundred sixty-six".