126535253442215 has 16 divisors (see below), whose sum is σ = 152863675288128. Its totient is φ = 100548389569536.

The previous prime is 126535253442203. The next prime is 126535253442217. The reversal of 126535253442215 is 512244352535621.

It is a cyclic number.

It is not a de Polignac number, because 126535253442215 - 2¹² = 126535253438119 is a prime.

It is a super-2 number, since 2×126535253442215² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126535253442217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67887434 + ... + 69726423.

It is an arithmetic number, because the mean of its divisors is an integer number (9553979705508).

Almost surely, 2^{126535253442215} is an apocalyptic number.

126535253442215 is a deficient number, since it is larger than the sum of its proper divisors (26328421845913).

126535253442215 is a wasteful number, since it uses less digits than its factorization.

126535253442215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137615098.

The product of its digits is 8640000, while the sum is 50.

The spelling of 126535253442215 in words is "one hundred twenty-six trillion, five hundred thirty-five billion, two hundred fifty-three million, four hundred forty-two thousand, two hundred fifteen".