197161088910 has 64 divisors (see below), whose sum is σ = 476307800064. Its totient is φ = 52230240000.

The previous prime is 197161088909. The next prime is 197161088933. The reversal of 197161088910 is 19880161791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4280322 + ... + 4326138.

It is an arithmetic number, because the mean of its divisors is an integer number (7442309376).

Almost surely, 2^197161088910 is an apocalyptic number.

197161088910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197161088910 is an abundant number, since it is smaller than the sum of its proper divisors (279146711154).

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

197161088910 is a wasteful number, since it uses less digits than its factorization.

197161088910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46769.

The product of its (nonzero) digits is 217728, while the sum is 51.

The spelling of 197161088910 in words is "one hundred ninety-seven billion, one hundred sixty-one million, eighty-eight thousand, nine hundred ten".