1135126470661 has 32 divisors (see below), whose sum is σ = 1221173156448. Its totient is φ = 1051383889920.

The previous prime is 1135126470641. The next prime is 1135126470703. The reversal of 1135126470661 is 1660746215311.

It can be written as a sum of positive squares in 16 ways, for example, as 3656016225 + 1131470454436 = 60465^2 + 1063706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135126470661 - 2²³ = 1135118082053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135126470641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158158105 + ... + 158165281.

It is an arithmetic number, because the mean of its divisors is an integer number (38161661139).

Almost surely, 2^{1135126470661} is an apocalyptic number.

It is an amenable number.

1135126470661 is a deficient number, since it is larger than the sum of its proper divisors (86046685787).

1135126470661 is a wasteful number, since it uses less digits than its factorization.

1135126470661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 1135126470661 in words is "one trillion, one hundred thirty-five billion, one hundred twenty-six million, four hundred seventy thousand, six hundred sixty-one".