73335661 has 16 divisors (see below), whose sum is σ = 87821568. Its totient is φ = 59875200.

The previous prime is 73335653. The next prime is 73335749. The reversal of 73335661 is 16653337.

It is not a de Polignac number, because 73335661 - 2³ = 73335653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73335601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44431 + ... + 46051.

It is an arithmetic number, because the mean of its divisors is an integer number (5488848).

Almost surely, 2^73335661 is an apocalyptic number.

It is an amenable number.

73335661 is a deficient number, since it is larger than the sum of its proper divisors (14485907).

73335661 is a wasteful number, since it uses less digits than its factorization.

73335661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its digits is 34020, while the sum is 34.

The square root of 73335661 is about 8563.6242911515. The cubic root of 73335661 is about 418.5735070888.

Adding to 73335661 its reverse (16653337), we get a palindrome (89988998).

The spelling of 73335661 in words is "seventy-three million, three hundred thirty-five thousand, six hundred sixty-one".