66070750 has 16 divisors (see below), whose sum is σ = 123684912. Its totient is φ = 26428200.

The previous prime is 66070723. The next prime is 66070759. The reversal of 66070750 is 5707066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66070759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131892 + ... + 132391.

It is an arithmetic number, because the mean of its divisors is an integer number (7730307).

Almost surely, 2^66070750 is an apocalyptic number.

66070750 is a deficient number, since it is larger than the sum of its proper divisors (57614162).

66070750 is a wasteful number, since it uses less digits than its factorization.

66070750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264300 (or 264290 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 66070750 is about 8128.3915998185. The cubic root of 66070750 is about 404.2683533891.

The spelling of 66070750 in words is "sixty-six million, seventy thousand, seven hundred fifty".