11405526061 has 4 divisors (see below), whose sum is σ = 11411703072. Its totient is φ = 11399349052.

The previous prime is 11405526053. The next prime is 11405526079. The reversal of 11405526061 is 16062550411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11405526061 - 2³ = 11405526053 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 (11405526031) 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, 3085735 + ... + 3089428.

It is an arithmetic number, because the mean of its divisors is an integer number (2852925768).

Almost surely, 2^11405526061 is an apocalyptic number.

It is an amenable number.

11405526061 is a deficient number, since it is larger than the sum of its proper divisors (6177011).

11405526061 is an equidigital number, since it uses as much as digits as its factorization.

11405526061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177010.

The product of its (nonzero) digits is 7200, while the sum is 31.

It can be divided in two parts, 1140 and 5526061, that added together give a square (5527201 = 2351²).

The spelling of 11405526061 in words is "eleven billion, four hundred five million, five hundred twenty-six thousand, sixty-one".