66062406 has 32 divisors (see below), whose sum is σ = 137230560. Its totient is φ = 21176064.

The previous prime is 66062389. The next prime is 66062413. The reversal of 66062406 is 60426066.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53856 + ... + 55068.

It is an arithmetic number, because the mean of its divisors is an integer number (4288455).

Almost surely, 2^66062406 is an apocalyptic number.

66062406 is an abundant number, since it is smaller than the sum of its proper divisors (71168154).

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

66062406 is a wasteful number, since it uses less digits than its factorization.

66062406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66062406 is about 8127.8783209396. The cubic root of 66062406 is about 404.2513344755.

The spelling of 66062406 in words is "sixty-six million, sixty-two thousand, four hundred six".