671335476480 has 432 divisors, whose sum is σ = 2354524937856. Its totient is φ = 176588144640.

The previous prime is 671335476467. The next prime is 671335476523. The reversal of 671335476480 is 84674533176.

It is a happy number.

671335476480 is a `hidden beast` number, since 6 + 7 + 1 + 33 + 547 + 64 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347661115 + ... + 347663045.

It is an arithmetic number, because the mean of its divisors is an integer number (5450289208).

Almost surely, 2^671335476480 is an apocalyptic number.

671335476480 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 671335476480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1177262468928).

671335476480 is an abundant number, since it is smaller than the sum of its proper divisors (1683189461376).

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

671335476480 is a wasteful number, since it uses less digits than its factorization.

671335476480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 671335476480 in words is "six hundred seventy-one billion, three hundred thirty-five million, four hundred seventy-six thousand, four hundred eighty".