66696150 has 24 divisors (see below), whose sum is σ = 165406824. Its totient is φ = 17785600.

The previous prime is 66696131. The next prime is 66696167. The reversal of 66696150 is 5169666.

It is a junction number, because it is equal to n+sod(n) for n = 66696099 and 66696108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222171 + ... + 222470.

It is an arithmetic number, because the mean of its divisors is an integer number (6891951).

Almost surely, 2^66696150 is an apocalyptic number.

66696150 is an abundant number, since it is smaller than the sum of its proper divisors (98710674).

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

66696150 is a wasteful number, since it uses less digits than its factorization.

66696150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444656 (or 444651 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 66696150 is about 8166.7710877678. The cubic root of 66696150 is about 405.5398987582.

The spelling of 66696150 in words is "sixty-six million, six hundred ninety-six thousand, one hundred fifty".