671182614816 has 144 divisors (see below), whose sum is σ = 2056098582720. Its totient is φ = 191149432320.

The previous prime is 671182614797. The next prime is 671182614997. The reversal of 671182614816 is 618416281176.

It is a super-2 number, since 2×671182614816² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1233550 + ... + 1692338.

It is an arithmetic number, because the mean of its divisors is an integer number (14278462380).

Almost surely, 2^671182614816 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 671182614816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028049291360).

671182614816 is an abundant number, since it is smaller than the sum of its proper divisors (1384915967904).

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

671182614816 is a wasteful number, since it uses less digits than its factorization.

671182614816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459127 (or 459112 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The spelling of 671182614816 in words is "six hundred seventy-one billion, one hundred eighty-two million, six hundred fourteen thousand, eight hundred sixteen".