5515160650561 has 4 divisors (see below), whose sum is σ = 5515165566400. Its totient is φ = 5515155734724.

The previous prime is 5515160650513. The next prime is 5515160650579. The reversal of 5515160650561 is 1650560615155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5515160650561 - 2²⁷ = 5515026432833 is a prime.

It is a super-2 number, since 2×5515160650561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515160650361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140860 + ... + 3324178.

It is an arithmetic number, because the mean of its divisors is an integer number (1378791391600).

Almost surely, 2^{5515160650561} is an apocalyptic number.

It is an amenable number.

5515160650561 is a deficient number, since it is larger than the sum of its proper divisors (4915839).

5515160650561 is a wasteful number, since it uses less digits than its factorization.

5515160650561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915838.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 5515160650561 in words is "five trillion, five hundred fifteen billion, one hundred sixty million, six hundred fifty thousand, five hundred sixty-one".