675816640 has 56 divisors (see below), whose sum is σ = 1703966112. Its totient is φ = 254423040.

The previous prime is 675816593. The next prime is 675816641. The reversal of 675816640 is 46618576.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (675816641) 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, 56676 + ... + 67555.

Almost surely, 2^675816640 is an apocalyptic number.

It is an amenable number.

675816640 is an abundant number, since it is smaller than the sum of its proper divisors (1028149472).

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

675816640 is a wasteful number, since it uses less digits than its factorization.

675816640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124265 (or 124255 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 675816640 is about 25996.4736070106. The cubic root of 675816640 is about 877.5589373920.

The spelling of 675816640 in words is "six hundred seventy-five million, eight hundred sixteen thousand, six hundred forty".