20198689202 has 4 divisors (see below), whose sum is σ = 30298033806. Its totient is φ = 10099344600.

The previous prime is 20198689193. The next prime is 20198689211. The reversal of 20198689202 is 20298689102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20198689193) and next prime (20198689211).

It can be written as a sum of positive squares in only one way, i.e., 19381929961 + 816759241 = 139219^2 + 28579^2 .

It is a super-3 number, since 3×20198689202³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5049672299 + ... + 5049672302.

Almost surely, 2^20198689202 is an apocalyptic number.

20198689202 is a deficient number, since it is larger than the sum of its proper divisors (10099344604).

20198689202 is a wasteful number, since it uses less digits than its factorization.

20198689202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099344603.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 20198689202 in words is "twenty billion, one hundred ninety-eight million, six hundred eighty-nine thousand, two hundred two".