126696664 has 8 divisors (see below), whose sum is σ = 237556260. Its totient is φ = 63348328.

The previous prime is 126696653. The next prime is 126696697. The reversal of 126696664 is 466696621.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7918534 + ... + 7918549.

Almost surely, 2^126696664 is an apocalyptic number.

It is an amenable number.

126696664 is a deficient number, since it is larger than the sum of its proper divisors (110859596).

126696664 is a wasteful number, since it uses less digits than its factorization.

126696664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15837089 (or 15837085 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 126696664 is about 11255.9612650364. The cubic root of 126696664 is about 502.2520598899.

It can be divided in two parts, 126 and 696664, that added together give a triangular number (696790 = T₁₁₈₀).

The spelling of 126696664 in words is "one hundred twenty-six million, six hundred ninety-six thousand, six hundred sixty-four".