66407092 has 12 divisors (see below), whose sum is σ = 118405476. Its totient is φ = 32576960.

The previous prime is 66407069. The next prime is 66407189. The reversal of 66407092 is 29070466.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 36529936 = 5466^2 + 6044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156409 + ... + 156832.

It is an arithmetic number, because the mean of its divisors is an integer number (9867123).

Almost surely, 2^66407092 is an apocalyptic number.

It is an amenable number.

66407092 is a deficient number, since it is larger than the sum of its proper divisors (51998384).

66407092 is a wasteful number, since it uses less digits than its factorization.

66407092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313298 (or 313296 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66407092 is about 8149.0546691012. The cubic root of 66407092 is about 404.9531866838.

The spelling of 66407092 in words is "sixty-six million, four hundred seven thousand, ninety-two".