199498797153636 has 48 divisors (see below), whose sum is σ = 477495668514816. Its totient is φ = 64797997121824.

The previous prime is 199498797153619. The next prime is 199498797153637. The reversal of 199498797153636 is 636351797894991.

It is a super-3 number, since 3×199498797153636³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (199498797153637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778993716 + ... + 779249771.

It is an arithmetic number, because the mean of its divisors is an integer number (9947826427392).

Almost surely, 2^{199498797153636} is an apocalyptic number.

It is an amenable number.

199498797153636 is an abundant number, since it is smaller than the sum of its proper divisors (277996871361180).

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

199498797153636 is a wasteful number, since it uses less digits than its factorization.

199498797153636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558243768 (or 1558243766 counting only the distinct ones).

The product of its digits is 16665989760, while the sum is 87.

The spelling of 199498797153636 in words is "one hundred ninety-nine trillion, four hundred ninety-eight billion, seven hundred ninety-seven million, one hundred fifty-three thousand, six hundred thirty-six".