2054213665 has 16 divisors (see below), whose sum is σ = 2818022400. Its totient is φ = 1408196160.

The previous prime is 2054213659. The next prime is 2054213699. The reversal of 2054213665 is 5663124502.

It is not a de Polignac number, because 2054213665 - 2⁹ = 2054213153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2054213665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163011 + ... + 175159.

It is an arithmetic number, because the mean of its divisors is an integer number (176126400).

Almost surely, 2^2054213665 is an apocalyptic number.

It is an amenable number.

2054213665 is a deficient number, since it is larger than the sum of its proper divisors (763808735).

2054213665 is a wasteful number, since it uses less digits than its factorization.

2054213665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2054213665 is about 45323.4339497792. The cubic root of 2054213665 is about 1271.2038649755.

The spelling of 2054213665 in words is "two billion, fifty-four million, two hundred thirteen thousand, six hundred sixty-five".