42256201645 has 32 divisors (see below), whose sum is σ = 58376434176. Its totient is φ = 28763424000.

The previous prime is 42256201633. The next prime is 42256201661. The reversal of 42256201645 is 54610265224.

It is a happy number.

It is not a de Polignac number, because 42256201645 - 2⁷ = 42256201517 is a prime.

It is a super-3 number, since 3×42256201645³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14484727 + ... + 14487643.

It is an arithmetic number, because the mean of its divisors is an integer number (1824263568).

Almost surely, 2^42256201645 is an apocalyptic number.

It is an amenable number.

42256201645 is a deficient number, since it is larger than the sum of its proper divisors (16120232531).

42256201645 is a wasteful number, since it uses less digits than its factorization.

42256201645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 42256201645 its reverse (54610265224), we get a palindrome (96866466869).

The spelling of 42256201645 in words is "forty-two billion, two hundred fifty-six million, two hundred one thousand, six hundred forty-five".