66710264 has 16 divisors (see below), whose sum is σ = 129117120. Its totient is φ = 32279040.

The previous prime is 66710221. The next prime is 66710279. The reversal of 66710264 is 46201766.

It is a self number, because there is not a number n which added to its sum of digits gives 66710264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134249 + ... + 134744.

It is an arithmetic number, because the mean of its divisors is an integer number (8069820).

Almost surely, 2^66710264 is an apocalyptic number.

It is an amenable number.

66710264 is a deficient number, since it is larger than the sum of its proper divisors (62406856).

66710264 is a wasteful number, since it uses less digits than its factorization.

66710264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269030 (or 269026 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 66710264 is about 8167.6351534578. The cubic root of 66710264 is about 405.5685030401.

The spelling of 66710264 in words is "sixty-six million, seven hundred ten thousand, two hundred sixty-four".