66050540 has 12 divisors (see below), whose sum is σ = 138706176. Its totient is φ = 26420208.

The previous prime is 66050539. The next prime is 66050581. The reversal of 66050540 is 4505066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651244 + ... + 1651283.

It is an arithmetic number, because the mean of its divisors is an integer number (11558848).

Almost surely, 2^66050540 is an apocalyptic number.

It is an amenable number.

66050540 is an abundant number, since it is smaller than the sum of its proper divisors (72655636).

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

66050540 is a wasteful number, since it uses less digits than its factorization.

66050540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302536 (or 3302534 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 66050540 is about 8127.1483313645. The cubic root of 66050540 is about 404.2271294152.

The spelling of 66050540 in words is "sixty-six million, fifty thousand, five hundred forty".