66711050 has 72 divisors (see below), whose sum is σ = 146710476. Its totient is φ = 22498560.

The previous prime is 66711023. The next prime is 66711061. The reversal of 66711050 is 5011766.

It can be written as a sum of positive squares in 6 ways, for example, as 27636049 + 39075001 = 5257^2 + 6251^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 178664 + ... + 179036.

Almost surely, 2^66711050 is an apocalyptic number.

66711050 is an abundant number, since it is smaller than the sum of its proper divisors (79999426).

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

66711050 is a wasteful number, since it uses less digits than its factorization.

66711050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 66711050 is about 8167.6832700589. The cubic root of 66711050 is about 405.5700958764.

The spelling of 66711050 in words is "sixty-six million, seven hundred eleven thousand, fifty".