11664332461 has 4 divisors (see below), whose sum is σ = 11675560000. Its totient is φ = 11653104924.

The previous prime is 11664332443. The next prime is 11664332467. The reversal of 11664332461 is 16423346611.

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 11664332461 - 2⁵ = 11664332429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11664332461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664332467) 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, 5612211 + ... + 5614288.

It is an arithmetic number, because the mean of its divisors is an integer number (2918890000).

Almost surely, 2^11664332461 is an apocalyptic number.

It is an amenable number.

11664332461 is a deficient number, since it is larger than the sum of its proper divisors (11227539).

11664332461 is a wasteful number, since it uses less digits than its factorization.

11664332461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227538.

The product of its digits is 62208, while the sum is 37.

The spelling of 11664332461 in words is "eleven billion, six hundred sixty-four million, three hundred thirty-two thousand, four hundred sixty-one".