104404015511 has 4 divisors (see below), whose sum is σ = 104405898792. Its totient is φ = 104402132232.

The previous prime is 104404015501. The next prime is 104404015517. The reversal of 104404015511 is 115510404401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104404015511 is a prime.

It is a super-2 number, since 2×104404015511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104404015517) 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, 855881 + ... + 970226.

It is an arithmetic number, because the mean of its divisors is an integer number (26101474698).

Almost surely, 2^104404015511 is an apocalyptic number.

104404015511 is a deficient number, since it is larger than the sum of its proper divisors (1883281).

104404015511 is an equidigital number, since it uses as much as digits as its factorization.

104404015511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883280.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 104404015511 its reverse (115510404401), we get a palindrome (219914419912).

The spelling of 104404015511 in words is "one hundred four billion, four hundred four million, fifteen thousand, five hundred eleven".