5611379878065 has 32 divisors (see below), whose sum is σ = 9669471106176. Its totient is φ = 2762344926720.

The previous prime is 5611379878063. The next prime is 5611379878099. The reversal of 5611379878065 is 5608789731165.

It is a happy number.

It is not a de Polignac number, because 5611379878065 - 2¹ = 5611379878063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5611379877987 and 5611379878005.

It is not an unprimeable number, because it can be changed into a prime (5611379878063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2075605 + ... + 3940925.

It is an arithmetic number, because the mean of its divisors is an integer number (302170972068).

Almost surely, 2^{5611379878065} is an apocalyptic number.

It is an amenable number.

5611379878065 is a deficient number, since it is larger than the sum of its proper divisors (4058091228111).

5611379878065 is a wasteful number, since it uses less digits than its factorization.

5611379878065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880769.

The product of its (nonzero) digits is 76204800, while the sum is 66.

The spelling of 5611379878065 in words is "five trillion, six hundred eleven billion, three hundred seventy-nine million, eight hundred seventy-eight thousand, sixty-five".