42544166154 has 32 divisors (see below), whose sum is σ = 97429793280. Its totient is φ = 12132227952.

The previous prime is 42544166117. The next prime is 42544166191. The reversal of 42544166154 is 45166144524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42544166117) and next prime (42544166191).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946444 + ... + 990375.

It is an arithmetic number, because the mean of its divisors is an integer number (3044681040).

Almost surely, 2^42544166154 is an apocalyptic number.

42544166154 is an abundant number, since it is smaller than the sum of its proper divisors (54885627126).

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

42544166154 is a wasteful number, since it uses less digits than its factorization.

42544166154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937354.

The product of its digits is 460800, while the sum is 42.

The spelling of 42544166154 in words is "forty-two billion, five hundred forty-four million, one hundred sixty-six thousand, one hundred fifty-four".