671375999040 has 224 divisors, whose sum is σ = 2181443114880. Its totient is φ = 174878785536.

The previous prime is 671375999017. The next prime is 671375999071. The reversal of 671375999040 is 40999573176.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11520696 + ... + 11578824.

Almost surely, 2^671375999040 is an apocalyptic number.

671375999040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671375999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1090721557440).

671375999040 is an abundant number, since it is smaller than the sum of its proper divisors (1510067115840).

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

671375999040 is a wasteful number, since it uses less digits than its factorization.

671375999040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58429 (or 58419 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 60.

The spelling of 671375999040 in words is "six hundred seventy-one billion, three hundred seventy-five million, nine hundred ninety-nine thousand, forty".