142666056 has 192 divisors, whose sum is σ = 455011200. Its totient is φ = 41095296.

The previous prime is 142666049. The next prime is 142666093. The reversal of 142666056 is 650666241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142666056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3035425 + ... + 3035471.

It is an arithmetic number, because the mean of its divisors is an integer number (2369850).

Almost surely, 2^142666056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142666056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227505600).

142666056 is an abundant number, since it is smaller than the sum of its proper divisors (312345144).

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

142666056 is a wasteful number, since it uses less digits than its factorization.

142666056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 142666056 is about 11944.2896816847. The cubic root of 142666056 is about 522.5247728309.

The spelling of 142666056 in words is "one hundred forty-two million, six hundred sixty-six thousand, fifty-six".