198140040802 has 32 divisors (see below), whose sum is σ = 333363195648. Its totient is φ = 87542640000.

The previous prime is 198140040799. The next prime is 198140040817. The reversal of 198140040802 is 208040041891.

It is a super-3 number, since 3×198140040802³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160849 + ... + 649732.

It is an arithmetic number, because the mean of its divisors is an integer number (10417599864).

Almost surely, 2^198140040802 is an apocalyptic number.

198140040802 is a deficient number, since it is larger than the sum of its proper divisors (135223154846).

198140040802 is a wasteful number, since it uses less digits than its factorization.

198140040802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810906.

The product of its (nonzero) digits is 18432, while the sum is 37.

It can be divided in two parts, 1981400 and 40802, that added together give a palindrome (2022202).

The spelling of 198140040802 in words is "one hundred ninety-eight billion, one hundred forty million, forty thousand, eight hundred two".