126061666 has 32 divisors (see below), whose sum is σ = 208085760. Its totient is φ = 57081024.

The previous prime is 126061631. The next prime is 126061667. The reversal of 126061666 is 666160621.

It is not an unprimeable number, because it can be changed into a prime (126061667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69811 + ... + 71593.

It is an arithmetic number, because the mean of its divisors is an integer number (6502680).

Almost surely, 2^126061666 is an apocalyptic number.

126061666 is a deficient number, since it is larger than the sum of its proper divisors (82024094).

126061666 is a wasteful number, since it uses less digits than its factorization.

126061666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 126061666 is about 11227.7186462789. The cubic root of 126061666 is about 501.4115658801.

It can be divided in two parts, 1260 and 61666, that added together give a palindrome (62926).

The spelling of 126061666 in words is "one hundred twenty-six million, sixty-one thousand, six hundred sixty-six".