66850536 has 16 divisors (see below), whose sum is σ = 167126400. Its totient is φ = 22283504.

The previous prime is 66850519. The next prime is 66850559. The reversal of 66850536 is 63505866.

It is a junction number, because it is equal to n+sod(n) for n = 66850494 and 66850503.

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, 1392696 + ... + 1392743.

It is an arithmetic number, because the mean of its divisors is an integer number (10445400).

Almost surely, 2^66850536 is an apocalyptic number.

It is an amenable number.

66850536 is an abundant number, since it is smaller than the sum of its proper divisors (100275864).

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

66850536 is a wasteful number, since it uses less digits than its factorization.

66850536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785448 (or 2785444 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 66850536 is about 8176.2177074733. The cubic root of 66850536 is about 405.8525676600.

The spelling of 66850536 in words is "sixty-six million, eight hundred fifty thousand, five hundred thirty-six".