163442142661351 has 16 divisors (see below), whose sum is σ = 167911801046208. Its totient is φ = 159032996352000.

The previous prime is 163442142661339. The next prime is 163442142661403. The reversal of 163442142661351 is 153166241244361.

It is a cyclic number.

It is not a de Polignac number, because 163442142661351 - 2⁴³ = 154646049639143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163442142661295 and 163442142661304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163442142661151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4400491 + ... + 18607756.

It is an arithmetic number, because the mean of its divisors is an integer number (10494487565388).

Almost surely, 2^{163442142661351} is an apocalyptic number.

163442142661351 is a deficient number, since it is larger than the sum of its proper divisors (4469658384857).

163442142661351 is a wasteful number, since it uses less digits than its factorization.

163442142661351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23009562.

The product of its digits is 2488320, while the sum is 49.

The spelling of 163442142661351 in words is "one hundred sixty-three trillion, four hundred forty-two billion, one hundred forty-two million, six hundred sixty-one thousand, three hundred fifty-one".