42016423601 has 4 divisors (see below), whose sum is σ = 42017373552. Its totient is φ = 42015473652.

The previous prime is 42016423567. The next prime is 42016423609. The reversal of 42016423601 is 10632461024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42016423601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42016423609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405215 + ... + 498228.

It is an arithmetic number, because the mean of its divisors is an integer number (10504343388).

Almost surely, 2^42016423601 is an apocalyptic number.

It is an amenable number.

42016423601 is a deficient number, since it is larger than the sum of its proper divisors (949951).

42016423601 is an equidigital number, since it uses as much as digits as its factorization.

42016423601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949950.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 42016423601 its reverse (10632461024), we get a palindrome (52648884625).

The spelling of 42016423601 in words is "forty-two billion, sixteen million, four hundred twenty-three thousand, six hundred one".