66004546 has 8 divisors (see below), whose sum is σ = 99554364. Its totient is φ = 32819760.

The previous prime is 66004541. The next prime is 66004607. The reversal of 66004546 is 64540066.

It can be written as a sum of positive squares in 2 ways, for example, as 65853225 + 151321 = 8115^2 + 389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66004546² = 8713200185332232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66004541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90805 + ... + 91528.

Almost surely, 2^66004546 is an apocalyptic number.

66004546 is a deficient number, since it is larger than the sum of its proper divisors (33549818).

66004546 is a wasteful number, since it uses less digits than its factorization.

66004546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182516.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 66004546 is about 8124.3181867773. The cubic root of 66004546 is about 404.1332803730.

The spelling of 66004546 in words is "sixty-six million, four thousand, five hundred forty-six".