66464270 has 8 divisors (see below), whose sum is σ = 119635704. Its totient is φ = 26585704.

The previous prime is 66464269. The next prime is 66464309. The reversal of 66464270 is 7246466.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66464270.

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, 3323204 + ... + 3323223.

It is an arithmetic number, because the mean of its divisors is an integer number (14954463).

Almost surely, 2^66464270 is an apocalyptic number.

66464270 is a deficient number, since it is larger than the sum of its proper divisors (53171434).

66464270 is a wasteful number, since it uses less digits than its factorization.

66464270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646434.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 66464270 is about 8152.5621739426. The cubic root of 66464270 is about 405.0693779434.

The spelling of 66464270 in words is "sixty-six million, four hundred sixty-four thousand, two hundred seventy".