671102172100 has 18 divisors (see below), whose sum is σ = 1456291713674. Its totient is φ = 268440868800.

The previous prime is 671102172079. The next prime is 671102172113. The reversal of 671102172100 is 1271201176.

It can be written as a sum of positive squares in 3 ways, for example, as 75822028164 + 595280143936 = 275358^2 + 771544^2 .

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 5 ways as a sum of consecutive naturals, for example, 3355510761 + ... + 3355510960.

Almost surely, 2^671102172100 is an apocalyptic number.

It is an amenable number.

671102172100 is an abundant number, since it is smaller than the sum of its proper divisors (785189541574).

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

671102172100 is a wasteful number, since it uses less digits than its factorization.

671102172100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711021735 (or 6711021728 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 671102172100 its reverse (1271201176), we get a palindrome (672373373276).

The spelling of 671102172100 in words is "six hundred seventy-one billion, one hundred two million, one hundred seventy-two thousand, one hundred".