133663485727138 has 16 divisors (see below), whose sum is σ = 206980930587960. Its totient is φ = 64688559952896.

The previous prime is 133663485727129. The next prime is 133663485727153. The reversal of 133663485727138 is 831727584366331.

It can be written as a sum of positive squares in 4 ways, for example, as 133214924683129 + 448561044009 = 11541877^2 + 669747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4679424373 + ... + 4679452936.

Almost surely, 2^{133663485727138} is an apocalyptic number.

133663485727138 is a deficient number, since it is larger than the sum of its proper divisors (73317444860822).

133663485727138 is a wasteful number, since it uses less digits than its factorization.

133663485727138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358877541.

The product of its digits is 365783040, while the sum is 67.

The spelling of 133663485727138 in words is "one hundred thirty-three trillion, six hundred sixty-three billion, four hundred eighty-five million, seven hundred twenty-seven thousand, one hundred thirty-eight".