196505616 has 40 divisors (see below), whose sum is σ = 509775904. Its totient is φ = 65226240.

The previous prime is 196505611. The next prime is 196505651. The reversal of 196505616 is 616505691.

It is a super-2 number, since 2×196505616² = 77228914239078912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196505611) 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, 3075 + ... + 20061.

Almost surely, 2^196505616 is an apocalyptic number.

196505616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

196505616 is an abundant number, since it is smaller than the sum of its proper divisors (313270288).

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

196505616 is a wasteful number, since it uses less digits than its factorization.

196505616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17239 (or 17233 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 196505616 is about 14018.0460835310. The cubic root of 196505616 is about 581.3776368100.

The spelling of 196505616 in words is "one hundred ninety-six million, five hundred five thousand, six hundred sixteen".