11657235145 has 8 divisors (see below), whose sum is σ = 13989316104. Its totient is φ = 9325365504.

The previous prime is 11657235127. The next prime is 11657235151. The reversal of 11657235145 is 54153275611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49112064 + 11608123081 = 7008^2 + 107741^2 .

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 11657235145 - 2²⁵ = 11623680713 is a prime.

It is a super-2 number, since 2×11657235145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11657235098 and 11657235107.

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, 119857 + ... + 194113.

It is an arithmetic number, because the mean of its divisors is an integer number (1748664513).

Almost surely, 2^11657235145 is an apocalyptic number.

It is an amenable number.

11657235145 is a deficient number, since it is larger than the sum of its proper divisors (2332080959).

11657235145 is an equidigital number, since it uses as much as digits as its factorization.

11657235145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105659.

The product of its digits is 126000, while the sum is 40.

The spelling of 11657235145 in words is "eleven billion, six hundred fifty-seven million, two hundred thirty-five thousand, one hundred forty-five".