196149391200 has 972 divisors, whose sum is σ = 841901575788. Its totient is φ = 42844032000.

The previous prime is 196149391199. The next prime is 196149391237. The reversal of 196149391200 is 2193941691.

196149391200 is a `hidden beast` number, since 1 + 9 + 614 + 9 + 3 + 9 + 1 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 186630675 + ... + 186631725.

Almost surely, 2^196149391200 is an apocalyptic number.

196149391200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196149391200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420950787894).

196149391200 is an abundant number, since it is smaller than the sum of its proper divisors (645752184588).

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

196149391200 is a wasteful number, since it uses less digits than its factorization.

196149391200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The spelling of 196149391200 in words is "one hundred ninety-six billion, one hundred forty-nine million, three hundred ninety-one thousand, two hundred".