126616232655 has 96 divisors (see below), whose sum is σ = 252573834240. Its totient is φ = 58031043840.

The previous prime is 126616232653. The next prime is 126616232663. The reversal of 126616232655 is 556232616621.

126616232655 is a `hidden beast` number, since 1 + 2 + 6 + 616 + 2 + 3 + 26 + 5 + 5 = 666.

It is not a de Polignac number, because 126616232655 - 2¹ = 126616232653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 126616232655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126616232653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4339977 + ... + 4369053.

It is an arithmetic number, because the mean of its divisors is an integer number (2630977440).

Almost surely, 2^126616232655 is an apocalyptic number.

126616232655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126616232655 is a deficient number, since it is larger than the sum of its proper divisors (125957601585).

126616232655 is a wasteful number, since it uses less digits than its factorization.

126616232655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29581 (or 29578 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 126616232655 in words is "one hundred twenty-six billion, six hundred sixteen million, two hundred thirty-two thousand, six hundred fifty-five".