42166442633 has 4 divisors (see below), whose sum is σ = 48190220160. Its totient is φ = 36142665108.

The previous prime is 42166442629. The next prime is 42166442693. The reversal of 42166442633 is 33624466124.

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 not a de Polignac number, because 42166442633 - 2² = 42166442629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42166442603) 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, 3011888753 + ... + 3011888766.

It is an arithmetic number, because the mean of its divisors is an integer number (12047555040).

Almost surely, 2^42166442633 is an apocalyptic number.

It is an amenable number.

42166442633 is a deficient number, since it is larger than the sum of its proper divisors (6023777527).

42166442633 is an equidigital number, since it uses as much as digits as its factorization.

42166442633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023777526.

The product of its digits is 497664, while the sum is 41.

The spelling of 42166442633 in words is "forty-two billion, one hundred sixty-six million, four hundred forty-two thousand, six hundred thirty-three".