2164056511 has 2 divisors, whose sum is σ = 2164056512. Its totient is φ = 2164056510.

The previous prime is 2164056487. The next prime is 2164056527. The reversal of 2164056511 is 1156504612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164056511 - 2¹¹ = 2164054463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164056611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082028255 + 1082028256.

It is an arithmetic number, because the mean of its divisors is an integer number (1082028256).

Almost surely, 2^2164056511 is an apocalyptic number.

2164056511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164056511 is an equidigital number, since it uses as much as digits as its factorization.

2164056511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2164056511 is about 46519.4207939007. The cubic root of 2164056511 is about 1293.4695198301.

The spelling of 2164056511 in words is "two billion, one hundred sixty-four million, fifty-six thousand, five hundred eleven".