126661134354 has 16 divisors (see below), whose sum is σ = 268223578848. Its totient is φ = 39736826432.

The previous prime is 126661134331. The next prime is 126661134359. The reversal of 126661134354 is 453431166621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (126661134359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620887812 + ... + 620888015.

It is an arithmetic number, because the mean of its divisors is an integer number (16763973678).

Almost surely, 2^126661134354 is an apocalyptic number.

126661134354 is an abundant number, since it is smaller than the sum of its proper divisors (141562444494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126661134354 is a wasteful number, since it uses less digits than its factorization.

126661134354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241775849.

The product of its digits is 311040, while the sum is 42.

The spelling of 126661134354 in words is "one hundred twenty-six billion, six hundred sixty-one million, one hundred thirty-four thousand, three hundred fifty-four".