2057665326 has 16 divisors (see below), whose sum is σ = 4211036544. Its totient is φ = 669937464.

The previous prime is 2057665301. The next prime is 2057665343. The reversal of 2057665326 is 6235667502.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3987466 + ... + 3987981.

It is an arithmetic number, because the mean of its divisors is an integer number (263189784).

Almost surely, 2^2057665326 is an apocalyptic number.

2057665326 is an abundant number, since it is smaller than the sum of its proper divisors (2153371218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2057665326 is a wasteful number, since it uses less digits than its factorization.

2057665326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975495.

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 2057665326 is about 45361.4960732117. The cubic root of 2057665326 is about 1271.9154607891.

The spelling of 2057665326 in words is "two billion, fifty-seven million, six hundred sixty-five thousand, three hundred twenty-six".