66666050 has 48 divisors (see below), whose sum is σ = 137884032. Its totient is φ = 23774400.

The previous prime is 66666049. The next prime is 66666053. The reversal of 66666050 is 5066666.

It is a self number, because there is not a number n which added to its sum of digits gives 66666050.

It is not an unprimeable number, because it can be changed into a prime (66666053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28007 + ... + 30293.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 2^66666050 is an apocalyptic number.

66666050 is an abundant number, since it is smaller than the sum of its proper divisors (71217982).

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

66666050 is a wasteful number, since it uses less digits than its factorization.

66666050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 66666050 is about 8164.9280462231. The cubic root of 66666050 is about 405.4788828040.

The spelling of 66666050 in words is "sixty-six million, six hundred sixty-six thousand, fifty".