126754342066 has 24 divisors (see below), whose sum is σ = 209018052432. Its totient is φ = 57607195800.

The previous prime is 126754342019. The next prime is 126754342081. The reversal of 126754342066 is 660243457621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1805481 + ... + 1874371.

It is an arithmetic number, because the mean of its divisors is an integer number (8709085518).

Almost surely, 2^126754342066 is an apocalyptic number.

126754342066 is a deficient number, since it is larger than the sum of its proper divisors (82263710366).

126754342066 is a wasteful number, since it uses less digits than its factorization.

126754342066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76518 (or 76507 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

Adding to 126754342066 its reverse (660243457621), we get a palindrome (786997799687).

The spelling of 126754342066 in words is "one hundred twenty-six billion, seven hundred fifty-four million, three hundred forty-two thousand, sixty-six".