11631660379 has 4 divisors (see below), whose sum is σ = 11723248384. Its totient is φ = 11540072376.

The previous prime is 11631660301. The next prime is 11631660401. The reversal of 11631660379 is 97306613611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97306613611 = 167 ⋅582674333.

It is a cyclic number.

It is not a de Polignac number, because 11631660379 - 2¹³ = 11631652187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11631660479) 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, 45793812 + ... + 45794065.

It is an arithmetic number, because the mean of its divisors is an integer number (2930812096).

Almost surely, 2^11631660379 is an apocalyptic number.

11631660379 is a deficient number, since it is larger than the sum of its proper divisors (91588005).

11631660379 is an equidigital number, since it uses as much as digits as its factorization.

11631660379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91588004.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 11631660379 in words is "eleven billion, six hundred thirty-one million, six hundred sixty thousand, three hundred seventy-nine".