671065274880 has 3200 divisors, whose sum is σ = 3341927102976. Its totient is φ = 124216934400.

The previous prime is 671065274849. The next prime is 671065274903. The reversal of 671065274880 is 88472560176.

671065274880 is a `hidden beast` number, since 6 + 7 + 106 + 52 + 7 + 488 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 11001070050 + ... + 11001070110.

Almost surely, 2^671065274880 is an apocalyptic number.

671065274880 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 671065274880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670963551488).

671065274880 is an abundant number, since it is smaller than the sum of its proper divisors (2670861828096).

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

671065274880 is a wasteful number, since it uses less digits than its factorization.

671065274880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 671065274880 in words is "six hundred seventy-one billion, sixty-five million, two hundred seventy-four thousand, eight hundred eighty".