671069549880 has 96 divisors (see below), whose sum is σ = 2210852507760. Its totient is φ = 176500477440.

The previous prime is 671069549819. The next prime is 671069549897. The reversal of 671069549880 is 88945960176.

671069549880 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 6 + 9 + 549 + 8 + 80 = 666.

It is a super-2 number, since 2×671069549880² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12741406 + ... + 12793965.

Almost surely, 2^671069549880 is an apocalyptic number.

671069549880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671069549880 is an abundant number, since it is smaller than the sum of its proper divisors (1539782957880).

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

671069549880 is a wasteful number, since it uses less digits than its factorization.

671069549880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25535461 (or 25535454 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 671069549880 in words is "six hundred seventy-one billion, sixty-nine million, five hundred forty-nine thousand, eight hundred eighty".