998260364181 has 16 divisors (see below), whose sum is σ = 1413811355904. Its totient is φ = 624358285824.

The previous prime is 998260364111. The next prime is 998260364237. The reversal of 998260364181 is 181463062899.

It is not a de Polignac number, because 998260364181 - 2⁷ = 998260364053 is a prime.

It is a super-2 number, since 2×998260364181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998260364111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31251981 + ... + 31283906.

It is an arithmetic number, because the mean of its divisors is an integer number (88363209744).

Almost surely, 2^998260364181 is an apocalyptic number.

It is an amenable number.

998260364181 is a deficient number, since it is larger than the sum of its proper divisors (415550991723).

998260364181 is a wasteful number, since it uses less digits than its factorization.

998260364181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62536220.

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 998260364181 in words is "nine hundred ninety-eight billion, two hundred sixty million, three hundred sixty-four thousand, one hundred eighty-one".