198118911010 has 32 divisors (see below), whose sum is σ = 357753176640. Its totient is φ = 78994657728.

The previous prime is 198118910971. The next prime is 198118911017. The reversal of 198118911010 is 10119811891.

It is a super-2 number, since 2×198118911010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198118911017) 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, 7312549 + ... + 7339591.

It is an arithmetic number, because the mean of its divisors is an integer number (11179786770).

Almost surely, 2^198118911010 is an apocalyptic number.

198118911010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198118911010 is a deficient number, since it is larger than the sum of its proper divisors (159634265630).

198118911010 is a wasteful number, since it uses less digits than its factorization.

198118911010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29362.

The product of its (nonzero) digits is 5184, while the sum is 40.

The spelling of 198118911010 in words is "one hundred ninety-eight billion, one hundred eighteen million, nine hundred eleven thousand, ten".