136456163246778 has 64 divisors (see below), whose sum is σ = 282472709750784. Its totient is φ = 43899890760000.

The previous prime is 136456163246749. The next prime is 136456163246807. The reversal of 136456163246778 is 877642361654631.

It is an interprime number because it is at equal distance from previous prime (136456163246749) and next prime (136456163246807).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1057891048 + ... + 1058020028.

It is an arithmetic number, because the mean of its divisors is an integer number (4413636089856).

Almost surely, 2^{136456163246778} is an apocalyptic number.

136456163246778 is an abundant number, since it is smaller than the sum of its proper divisors (146016546504006).

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

136456163246778 is a wasteful number, since it uses less digits than its factorization.

136456163246778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144251.

The product of its digits is 731566080, while the sum is 69.

The spelling of 136456163246778 in words is "one hundred thirty-six trillion, four hundred fifty-six billion, one hundred sixty-three million, two hundred forty-six thousand, seven hundred seventy-eight".