191422161300 has 72 divisors (see below), whose sum is σ = 560521061856. Its totient is φ = 50430892160.

The previous prime is 191422161179. The next prime is 191422161311. The reversal of 191422161300 is 3161224191.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3818919 + ... + 3868718.

It is an arithmetic number, because the mean of its divisors is an integer number (7785014748).

Almost surely, 2^191422161300 is an apocalyptic number.

191422161300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191422161300 is an abundant number, since it is smaller than the sum of its proper divisors (369098900556).

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

191422161300 is a wasteful number, since it uses less digits than its factorization.

191422161300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687737 (or 7687730 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

Adding to 191422161300 its reverse (3161224191), we get a palindrome (194583385491).

The spelling of 191422161300 in words is "one hundred ninety-one billion, four hundred twenty-two million, one hundred sixty-one thousand, three hundred".