671240264200 has 144 divisors (see below), whose sum is σ = 1716471115380. Its totient is φ = 243936000000.

The previous prime is 671240264137. The next prime is 671240264239. The reversal of 671240264200 is 2462042176.

It can be written as a sum of positive squares in 6 ways, for example, as 337047591364 + 334192672836 = 580558^2 + 578094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43576500 + ... + 43591900.

Almost surely, 2^671240264200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671240264200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858235557690).

671240264200 is an abundant number, since it is smaller than the sum of its proper divisors (1045230851180).

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

671240264200 is a wasteful number, since it uses less digits than its factorization.

671240264200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17240 (or 17220 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 671240264200 in words is "six hundred seventy-one billion, two hundred forty million, two hundred sixty-four thousand, two hundred".