2056155065 has 8 divisors (see below), whose sum is σ = 2468069448. Its totient is φ = 1644468480.

The previous prime is 2056154983. The next prime is 2056155077. The reversal of 2056155065 is 5605516502.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 2056078336 = 277^2 + 45344^2 .

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

It is not a de Polignac number, because 2056155065 - 2⁸ = 2056154809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36416 + ... + 73745.

It is an arithmetic number, because the mean of its divisors is an integer number (308508681).

Almost surely, 2^2056155065 is an apocalyptic number.

It is an amenable number.

2056155065 is a deficient number, since it is larger than the sum of its proper divisors (411914383).

2056155065 is a wasteful number, since it uses less digits than its factorization.

2056155065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113899.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 2056155065 is about 45344.8460687651. The cubic root of 2056155065 is about 1271.6042027743.

The spelling of 2056155065 in words is "two billion, fifty-six million, one hundred fifty-five thousand, sixty-five".