163442780415 has 48 divisors (see below), whose sum is σ = 286589871360. Its totient is φ = 86158195200.

The previous prime is 163442780411. The next prime is 163442780437. The reversal of 163442780415 is 514087244361.

163442780415 is a `hidden beast` number, since 1 + 634 + 4 + 2 + 7 + 8 + 0 + 4 + 1 + 5 = 666.

It is not a de Polignac number, because 163442780415 - 2² = 163442780411 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163442780411) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 14143890 + ... + 14155440.

It is an arithmetic number, because the mean of its divisors is an integer number (5970622320).

Almost surely, 2^163442780415 is an apocalyptic number.

163442780415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163442780415 is a deficient number, since it is larger than the sum of its proper divisors (123147090945).

163442780415 is a wasteful number, since it uses less digits than its factorization.

163442780415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15184 (or 15181 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 163442780415 in words is "one hundred sixty-three billion, four hundred forty-two million, seven hundred eighty thousand, four hundred fifteen".