66011035250 has 64 divisors (see below), whose sum is σ = 126946310400. Its totient is φ = 25687216000.

The previous prime is 66011035249. The next prime is 66011035271. The reversal of 66011035250 is 5253011066.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3670781 + ... + 3688719.

It is an arithmetic number, because the mean of its divisors is an integer number (1983536100).

Almost surely, 2^66011035250 is an apocalyptic number.

66011035250 is a deficient number, since it is larger than the sum of its proper divisors (60935275150).

66011035250 is a wasteful number, since it uses less digits than its factorization.

66011035250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18356 (or 18346 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 66011035250 in words is "sixty-six billion, eleven million, thirty-five thousand, two hundred fifty".