1115664623 has 8 divisors (see below), whose sum is σ = 1130388480. Its totient is φ = 1100955960.

The previous prime is 1115664617. The next prime is 1115664631. The reversal of 1115664623 is 3264665111.

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

It is a cyclic number.

It is not a de Polignac number, because 1115664623 - 2¹⁶ = 1115599087 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 (1115664023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288086 + ... + 291932.

It is an arithmetic number, because the mean of its divisors is an integer number (141298560).

Almost surely, 2^1115664623 is an apocalyptic number.

1115664623 is a deficient number, since it is larger than the sum of its proper divisors (14723857).

1115664623 is an equidigital number, since it uses as much as digits as its factorization.

1115664623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597.

The product of its digits is 25920, while the sum is 35.

The square root of 1115664623 is about 33401.5661758547. The cubic root of 1115664623 is about 1037.1571222509.

The spelling of 1115664623 in words is "one billion, one hundred fifteen million, six hundred sixty-four thousand, six hundred twenty-three".