136405216414242 has 12 divisors (see below), whose sum is σ = 295544635564230. Its totient is φ = 45468405471408.

The previous prime is 136405216414223. The next prime is 136405216414289. The reversal of 136405216414242 is 242414612504631.

136405216414242 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 0 + 5 + 216 + 4 + 1 + 424 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 135753933519801 + 651282894441 = 11651349^2 + 807021^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3789033789267 + ... + 3789033789302.

Almost surely, 2^{136405216414242} is an apocalyptic number.

136405216414242 is an abundant number, since it is smaller than the sum of its proper divisors (159139419149988).

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

136405216414242 is a wasteful number, since it uses less digits than its factorization.

136405216414242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578067578577 (or 7578067578574 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

Adding to 136405216414242 its reverse (242414612504631), we get a palindrome (378819828918873).

The spelling of 136405216414242 in words is "one hundred thirty-six trillion, four hundred five billion, two hundred sixteen million, four hundred fourteen thousand, two hundred forty-two".