42266476566 has 72 divisors (see below), whose sum is σ = 95208374520. Its totient is φ = 13898973600.

The previous prime is 42266476547. The next prime is 42266476573. The reversal of 42266476566 is 66567466224.

42266476566 is a `hidden beast` number, since 4 + 2 + 2 + 6 + 6 + 4 + 76 + 566 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 152586420 + ... + 152586696.

It is an arithmetic number, because the mean of its divisors is an integer number (1322338535).

Almost surely, 2^42266476566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42266476566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47604187260).

42266476566 is an abundant number, since it is smaller than the sum of its proper divisors (52941897954).

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

42266476566 is an equidigital number, since it uses as much as digits as its factorization.

42266476566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 383 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

Multiplying 42266476566 by its sum of digits (54), we get a square (2282389734564 = 1510758²).

42266476566 divided by its sum of digits (54) gives a square (782712529 = 27977²).

The spelling of 42266476566 in words is "forty-two billion, two hundred sixty-six million, four hundred seventy-six thousand, five hundred sixty-six".