5515211365145 has 16 divisors (see below), whose sum is σ = 6680113830720. Its totient is φ = 4370942810304.

The previous prime is 5515211365121. The next prime is 5515211365151. The reversal of 5515211365145 is 5415631125155.

It is a cyclic number.

It is not a de Polignac number, because 5515211365145 - 2²² = 5515207170841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5515211365096 and 5515211365105.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2335094 + ... + 4059936.

It is an arithmetic number, because the mean of its divisors is an integer number (417507114420).

Almost surely, 2^{5515211365145} is an apocalyptic number.

It is an amenable number.

5515211365145 is a deficient number, since it is larger than the sum of its proper divisors (1164902465575).

5515211365145 is a wasteful number, since it uses less digits than its factorization.

5515211365145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730824.

The product of its digits is 450000, while the sum is 44.

The spelling of 5515211365145 in words is "five trillion, five hundred fifteen billion, two hundred eleven million, three hundred sixty-five thousand, one hundred forty-five".