126664168 has 8 divisors (see below), whose sum is σ = 237495330. Its totient is φ = 63332080.

The previous prime is 126664099. The next prime is 126664169. The reversal of 126664168 is 861466621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 123698884 + 2965284 = 11122^2 + 1722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×126664168² = 32087622910264448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126664168.

It is not an unprimeable number, because it can be changed into a prime (126664169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7916503 + ... + 7916518.

Almost surely, 2^126664168 is an apocalyptic number.

It is an amenable number.

126664168 is a deficient number, since it is larger than the sum of its proper divisors (110831162).

126664168 is a wasteful number, since it uses less digits than its factorization.

126664168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15833027 (or 15833023 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 126664168 is about 11254.5176706956. The cubic root of 126664168 is about 502.2091159059.

The spelling of 126664168 in words is "one hundred twenty-six million, six hundred sixty-four thousand, one hundred sixty-eight".