2051510657105 has 16 divisors (see below), whose sum is σ = 3029923432704. Its totient is φ = 1298538613440.

The previous prime is 2051510657081. The next prime is 2051510657129. The reversal of 2051510657105 is 5017560151502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2051510657081) and next prime (2051510657129).

It is not a de Polignac number, because 2051510657105 - 2²⁶ = 2051443548241 is a prime.

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, 2254406861 + ... + 2254407770.

It is an arithmetic number, because the mean of its divisors is an integer number (189370214544).

Almost surely, 2^{2051510657105} is an apocalyptic number.

It is an amenable number.

2051510657105 is a deficient number, since it is larger than the sum of its proper divisors (978412775599).

2051510657105 is a wasteful number, since it uses less digits than its factorization.

2051510657105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508814656.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 2051510657105 in words is "two trillion, fifty-one billion, five hundred ten million, six hundred fifty-seven thousand, one hundred five".