551655600515011 has 4 divisors (see below), whose sum is σ = 564484800527032. Its totient is φ = 538826400502992.

The previous prime is 551655600514951. The next prime is 551655600515017. The reversal of 551655600515011 is 110515006556155.

It is a happy number.

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 551655600515011 - 2¹⁵ = 551655600482243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551655600515017) 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, 6414600005946 + ... + 6414600006031.

It is an arithmetic number, because the mean of its divisors is an integer number (141121200131758).

Almost surely, 2^{551655600515011} is an apocalyptic number.

551655600515011 is a deficient number, since it is larger than the sum of its proper divisors (12829200012021).

551655600515011 is a wasteful number, since it uses less digits than its factorization.

551655600515011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12829200012020.

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 551655600515011 in words is "five hundred fifty-one trillion, six hundred fifty-five billion, six hundred million, five hundred fifteen thousand, eleven".