42981656163 has 8 divisors (see below), whose sum is σ = 58034304000. Its totient is φ = 28291722888.

The previous prime is 42981656153. The next prime is 42981656183. The reversal of 42981656163 is 36165618924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42981656163 - 2⁵ = 42981656131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42981656153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90678363 + ... + 90678836.

It is an arithmetic number, because the mean of its divisors is an integer number (7254288000).

Almost surely, 2^42981656163 is an apocalyptic number.

42981656163 is a deficient number, since it is larger than the sum of its proper divisors (15052647837).

42981656163 is a wasteful number, since it uses less digits than its factorization.

42981656163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181357281.

The product of its digits is 1866240, while the sum is 51.

The spelling of 42981656163 in words is "forty-two billion, nine hundred eighty-one million, six hundred fifty-six thousand, one hundred sixty-three".