42166703266 has 8 divisors (see below), whose sum is σ = 63404701740. Its totient is φ = 21031802688.

The previous prime is 42166703251. The next prime is 42166703281. The reversal of 42166703266 is 66230766124.

It is an interprime number because it is at equal distance from previous prime (42166703251) and next prime (42166703281).

It can be written as a sum of positive squares in 2 ways, for example, as 42057396241 + 109307025 = 205079^2 + 10455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25773451 + ... + 25775086.

Almost surely, 2^42166703266 is an apocalyptic number.

42166703266 is a deficient number, since it is larger than the sum of its proper divisors (21237998474).

42166703266 is a wasteful number, since it uses less digits than its factorization.

42166703266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51548948.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 42166703266 in words is "forty-two billion, one hundred sixty-six million, seven hundred three thousand, two hundred sixty-six".