681001186598 has 8 divisors (see below), whose sum is σ = 1021667869200. Its totient is φ = 340445230200.

The previous prime is 681001186577. The next prime is 681001186601. The reversal of 681001186598 is 895681100186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×681001186598² (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 3 ways as a sum of consecutive naturals, for example, 27666173 + ... + 27690776.

It is an arithmetic number, because the mean of its divisors is an integer number (127708483650).

Almost surely, 2^681001186598 is an apocalyptic number.

681001186598 is a deficient number, since it is larger than the sum of its proper divisors (340666682602).

681001186598 is a wasteful number, since it uses less digits than its factorization.

681001186598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55363102.

The product of its (nonzero) digits is 829440, while the sum is 53.

The spelling of 681001186598 in words is "six hundred eighty-one billion, one million, one hundred eighty-six thousand, five hundred ninety-eight".