11611346653 has 4 divisors (see below), whose sum is σ = 11611741788. Its totient is φ = 11610951520.

The previous prime is 11611346651. The next prime is 11611346693. The reversal of 11611346653 is 35664311611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35664311611 = 17 ⋅2097900683.

It can be written as a sum of positive squares in 2 ways, for example, as 10140087204 + 1471259449 = 100698^2 + 38357^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611346653 - 2¹ = 11611346651 is a prime.

It is a super-2 number, since 2×11611346653² (a number of 21 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 (11611346651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149608 + ... + 213553.

It is an arithmetic number, because the mean of its divisors is an integer number (2902935447).

Almost surely, 2^11611346653 is an apocalyptic number.

It is an amenable number.

11611346653 is a deficient number, since it is larger than the sum of its proper divisors (395135).

11611346653 is an equidigital number, since it uses as much as digits as its factorization.

11611346653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395134.

The product of its digits is 38880, while the sum is 37.

The spelling of 11611346653 in words is "eleven billion, six hundred eleven million, three hundred forty-six thousand, six hundred fifty-three".