42165804912 has 80 divisors (see below), whose sum is σ = 135806760192. Its totient is φ = 10952156160.

The previous prime is 42165804911. The next prime is 42165804931. The reversal of 42165804912 is 21940856124.

42165804912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165804911) 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, 5700553 + ... + 5707944.

Almost surely, 2^42165804912 is an apocalyptic number.

42165804912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42165804912 is an abundant number, since it is smaller than the sum of its proper divisors (93640955280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42165804912 is a wasteful number, since it uses less digits than its factorization.

42165804912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11408526 (or 11408520 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 42165804912 in words is "forty-two billion, one hundred sixty-five million, eight hundred four thousand, nine hundred twelve".