126651418632 has 36 divisors (see below), whose sum is σ = 343022437485. Its totient is φ = 42216132960.

The previous prime is 126651418609. The next prime is 126651418639. The reversal of 126651418632 is 236814156621.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

126651418632 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 5 + 1 + 4 + 1 + 8 + 632 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 79764445476 + 46886973156 = 282426^2 + 216534^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251646.

It is not an unprimeable number, because it can be changed into a prime (126651418639) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2998782 + ... + 3040722.

Almost surely, 2^126651418632 is an apocalyptic number.

126651418632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126651418632 is an abundant number, since it is smaller than the sum of its proper divisors (216371018853).

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

126651418632 is an frugal number, since it uses more digits than its factorization.

126651418632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83894 (or 41946 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 126651418632 in words is "one hundred twenty-six billion, six hundred fifty-one million, four hundred eighteen thousand, six hundred thirty-two".