11651111115667 has 4 divisors (see below), whose sum is σ = 11651410738296. Its totient is φ = 11650811493040.

The previous prime is 11651111115607. The next prime is 11651111115673. The reversal of 11651111115667 is 76651111115611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11651111115667 - 2³⁹ = 11101355301779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11651111115607) 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, 149752978 + ... + 149830759.

It is an arithmetic number, because the mean of its divisors is an integer number (2912852684574).

Almost surely, 2^{11651111115667} is an apocalyptic number.

11651111115667 is a deficient number, since it is larger than the sum of its proper divisors (299622629).

11651111115667 is an equidigital number, since it uses as much as digits as its factorization.

11651111115667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299622628.

The product of its digits is 37800, while the sum is 43.

The spelling of 11651111115667 in words is "eleven trillion, six hundred fifty-one billion, one hundred eleven million, one hundred fifteen thousand, six hundred sixty-seven".