2151511260511 has 2 divisors, whose sum is σ = 2151511260512. Its totient is φ = 2151511260510.

The previous prime is 2151511260449. The next prime is 2151511260517. The reversal of 2151511260511 is 1150621151512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151511260511 - 2³¹ = 2149363776863 is a prime.

It is a super-2 number, since 2×2151511260511² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151511260517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075755630255 + 1075755630256.

It is an arithmetic number, because the mean of its divisors is an integer number (1075755630256).

Almost surely, 2^{2151511260511} is an apocalyptic number.

2151511260511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151511260511 is an equidigital number, since it uses as much as digits as its factorization.

2151511260511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 31.

The spelling of 2151511260511 in words is "two trillion, one hundred fifty-one billion, five hundred eleven million, two hundred sixty thousand, five hundred eleven".