660523314 has 64 divisors (see below), whose sum is σ = 1496154240. Its totient is φ = 192568320.

The previous prime is 660523291. The next prime is 660523327. The reversal of 660523314 is 413325066.

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, 828364 + ... + 829160.

It is an arithmetic number, because the mean of its divisors is an integer number (23377410).

Almost surely, 2^660523314 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660523314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748077120).

660523314 is an abundant number, since it is smaller than the sum of its proper divisors (835630926).

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

660523314 is a wasteful number, since it uses less digits than its factorization.

660523314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 660523314 is about 25700.6481241233. The cubic root of 660523314 is about 870.8888234374. Note that the first 4 decimals are identical.

The spelling of 660523314 in words is "six hundred sixty million, five hundred twenty-three thousand, three hundred fourteen".