198206140755 has 32 divisors (see below), whose sum is σ = 381509568000. Its totient is φ = 85839651072.

The previous prime is 198206140753. The next prime is 198206140777. The reversal of 198206140755 is 557041602891.

It is a happy number.

It is not a de Polignac number, because 198206140755 - 2¹ = 198206140753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198206140753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49673730 + ... + 49677719.

It is an arithmetic number, because the mean of its divisors is an integer number (11922174000).

Almost surely, 2^198206140755 is an apocalyptic number.

198206140755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198206140755 is a deficient number, since it is larger than the sum of its proper divisors (183303427245).

198206140755 is a wasteful number, since it uses less digits than its factorization.

198206140755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99351483.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 198206140755 in words is "one hundred ninety-eight billion, two hundred six million, one hundred forty thousand, seven hundred fifty-five".