11664441051 has 8 divisors (see below), whose sum is σ = 15553158144. Its totient is φ = 7776009000.

The previous prime is 11664441049. The next prime is 11664441067. The reversal of 11664441051 is 15014446611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11664441051 - 2¹ = 11664441049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11664441091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57426 + ... + 163176.

It is an arithmetic number, because the mean of its divisors is an integer number (1944144768).

Almost surely, 2^11664441051 is an apocalyptic number.

11664441051 is a deficient number, since it is larger than the sum of its proper divisors (3888717093).

11664441051 is a wasteful number, since it uses less digits than its factorization.

11664441051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142521.

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 11664441051 its reverse (15014446611), we get a palindrome (26678887662).

The spelling of 11664441051 in words is "eleven billion, six hundred sixty-four million, four hundred forty-one thousand, fifty-one".