131226669602 has 162 divisors, whose sum is σ = 251863916913. Its totient is φ = 51123641184.

The previous prime is 131226669589. The next prime is 131226669649. The reversal of 131226669602 is 206966622131.

It can be written as a sum of positive squares in 2 ways, for example, as 105872795161 + 25353874441 = 325381^2 + 159229^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=256151.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3051782993 + ... + 3051783035.

Almost surely, 2^131226669602 is an apocalyptic number.

131226669602 is a deficient number, since it is larger than the sum of its proper divisors (120637247311).

131226669602 is an equidigital number, since it uses as much as digits as its factorization.

131226669602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 131226669602 in words is "one hundred thirty-one billion, two hundred twenty-six million, six hundred sixty-nine thousand, six hundred two".