126668633 has 16 divisors (see below), whose sum is σ = 157368960. Its totient is φ = 99277056.

The previous prime is 126668599. The next prime is 126668653. The reversal of 126668633 is 336866621.

It is a cyclic number.

It is not a de Polignac number, because 126668633 - 2¹² = 126664537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126668653) 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, 3233 + ... + 16241.

It is an arithmetic number, because the mean of its divisors is an integer number (9835560).

Almost surely, 2^126668633 is an apocalyptic number.

126668633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126668633 is a deficient number, since it is larger than the sum of its proper divisors (30700327).

126668633 is a wasteful number, since it uses less digits than its factorization.

126668633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13136.

The product of its digits is 186624, while the sum is 41.

The square root of 126668633 is about 11254.7160337345. The cubic root of 126668633 is about 502.2150169101.

The spelling of 126668633 in words is "one hundred twenty-six million, six hundred sixty-eight thousand, six hundred thirty-three".