675881311440 has 160 divisors (see below), whose sum is σ = 2117126209536. Its totient is φ = 178354229760.

The previous prime is 675881311403. The next prime is 675881311459. The reversal of 675881311440 is 44113188576.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 675881311440.

It is a congruent number.

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, 36353827 + ... + 36372413.

Almost surely, 2^675881311440 is an apocalyptic number.

675881311440 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 675881311440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058563104768).

675881311440 is an abundant number, since it is smaller than the sum of its proper divisors (1441244898096).

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

675881311440 is a wasteful number, since it uses less digits than its factorization.

675881311440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20177 (or 20171 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 675881311440 in words is "six hundred seventy-five billion, eight hundred eighty-one million, three hundred eleven thousand, four hundred forty".