11551516504401 has 8 divisors (see below), whose sum is σ = 15760208564320. Its totient is φ = 7521917723712.

The previous prime is 11551516504387. The next prime is 11551516504427. The reversal of 11551516504401 is 10440561515511.

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

It is not a de Polignac number, because 11551516504401 - 2¹³ = 11551516496209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11551516504401.

It is not an unprimeable number, because it can be changed into a prime (11551516504471) 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, 44773319656 + ... + 44773319913.

It is an arithmetic number, because the mean of its divisors is an integer number (1970026070540).

Almost surely, 2^{11551516504401} is an apocalyptic number.

It is an amenable number.

11551516504401 is a deficient number, since it is larger than the sum of its proper divisors (4208692059919).

11551516504401 is an equidigital number, since it uses as much as digits as its factorization.

11551516504401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89546639615.

The product of its (nonzero) digits is 60000, while the sum is 39.

The spelling of 11551516504401 in words is "eleven trillion, five hundred fifty-one billion, five hundred sixteen million, five hundred four thousand, four hundred one".