73541666 has 16 divisors (see below), whose sum is σ = 126675360. Its totient is φ = 31668480.

The previous prime is 73541621. The next prime is 73541669. The reversal of 73541666 is 66614537.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73541669) 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, 87551 + ... + 88386.

It is an arithmetic number, because the mean of its divisors is an integer number (7917210).

Almost surely, 2^73541666 is an apocalyptic number.

73541666 is a deficient number, since it is larger than the sum of its proper divisors (53133694).

73541666 is a wasteful number, since it uses less digits than its factorization.

73541666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175969.

The product of its digits is 90720, while the sum is 38.

The square root of 73541666 is about 8575.6437659222. The cubic root of 73541666 is about 418.9650747542.

The spelling of 73541666 in words is "seventy-three million, five hundred forty-one thousand, six hundred sixty-six".