196191615149 has 8 divisors (see below), whose sum is σ = 203290424832. Its totient is φ = 189140933520.

The previous prime is 196191615089. The next prime is 196191615173. The reversal of 196191615149 is 941516191691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196191615149 - 2¹² = 196191611053 is a prime.

It is a super-2 number, since 2×196191615149² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 196191615149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196191615349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12023714 + ... + 12040019.

It is an arithmetic number, because the mean of its divisors is an integer number (25411303104).

Almost surely, 2^196191615149 is an apocalyptic number.

It is an amenable number.

196191615149 is a deficient number, since it is larger than the sum of its proper divisors (7098809683).

196191615149 is a wasteful number, since it uses less digits than its factorization.

196191615149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24064027.

The product of its digits is 524880, while the sum is 53.

The spelling of 196191615149 in words is "one hundred ninety-six billion, one hundred ninety-one million, six hundred fifteen thousand, one hundred forty-nine".