126660163313 has 8 divisors (see below), whose sum is σ = 127788944328. Its totient is φ = 125531521024.

The previous prime is 126660163307. The next prime is 126660163369. The reversal of 126660163313 is 313361066621.

It can be written as a sum of positive squares in 4 ways, for example, as 2610392464 + 124049770849 = 51092^2 + 352207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126660163313 - 2⁶ = 126660163249 is a prime.

It is a super-3 number, since 3×126660163313³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126660163393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2892881 + ... + 2936337.

It is an arithmetic number, because the mean of its divisors is an integer number (15973618041).

Almost surely, 2^126660163313 is an apocalyptic number.

It is an amenable number.

126660163313 is a deficient number, since it is larger than the sum of its proper divisors (1128781015).

126660163313 is a wasteful number, since it uses less digits than its factorization.

126660163313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69363.

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 126660163313 in words is "one hundred twenty-six billion, six hundred sixty million, one hundred sixty-three thousand, three hundred thirteen".