21476570616126 has 64 divisors (see below), whose sum is σ = 48092640330240. Its totient is φ = 7103823629760.

The previous prime is 21476570616121. The next prime is 21476570616133. The reversal of 21476570616126 is 62161607567412.

21476570616126 is a `hidden beast` number, since 2 + 1 + 4 + 7 + 6 + 5 + 7 + 0 + 616 + 12 + 6 = 666.

It is a super-2 number, since 2×21476570616126² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21476570616121) 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 31 ways as a sum of consecutive naturals, for example, 149493786 + ... + 149637378.

It is an arithmetic number, because the mean of its divisors is an integer number (751447505160).

Almost surely, 2^{21476570616126} is an apocalyptic number.

21476570616126 is an abundant number, since it is smaller than the sum of its proper divisors (26616069714114).

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

21476570616126 is a wasteful number, since it uses less digits than its factorization.

21476570616126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164878 (or 164872 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 21476570616126 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred seventy million, six hundred sixteen thousand, one hundred twenty-six".