57145870565 has 8 divisors (see below), whose sum is σ = 78371479680. Its totient is φ = 39185739792.

The previous prime is 57145870559. The next prime is 57145870571. The reversal of 57145870565 is 56507854175.

It is an interprime number because it is at equal distance from previous prime (57145870559) and next prime (57145870571).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57145870565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816369545 + ... + 816369614.

It is an arithmetic number, because the mean of its divisors is an integer number (9796434960).

Almost surely, 2^57145870565 is an apocalyptic number.

It is an amenable number.

57145870565 is a deficient number, since it is larger than the sum of its proper divisors (21225609115).

57145870565 is a wasteful number, since it uses less digits than its factorization.

57145870565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632739171.

The product of its (nonzero) digits is 5880000, while the sum is 53.

The spelling of 57145870565 in words is "fifty-seven billion, one hundred forty-five million, eight hundred seventy thousand, five hundred sixty-five".