126151666 has 16 divisors (see below), whose sum is σ = 193818240. Its totient is φ = 61553520.

The previous prime is 126151657. The next prime is 126151667. The reversal of 126151666 is 666151621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (126151667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33856 + ... + 37396.

It is an arithmetic number, because the mean of its divisors is an integer number (12113640).

Almost surely, 2^126151666 is an apocalyptic number.

126151666 is a deficient number, since it is larger than the sum of its proper divisors (67666574).

126151666 is a wasteful number, since it uses less digits than its factorization.

126151666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969.

The product of its digits is 12960, while the sum is 34.

The square root of 126151666 is about 11231.7258691619. The cubic root of 126151666 is about 501.5308628013.

The spelling of 126151666 in words is "one hundred twenty-six million, one hundred fifty-one thousand, six hundred sixty-six".