57066388390 has 16 divisors (see below), whose sum is σ = 112057635600. Its totient is φ = 20751413920.

The previous prime is 57066388369. The next prime is 57066388399. The reversal of 57066388390 is 9388366075.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57066388399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259392565 + ... + 259392784.

It is an arithmetic number, because the mean of its divisors is an integer number (7003602225).

Almost surely, 2^57066388390 is an apocalyptic number.

57066388390 is a deficient number, since it is larger than the sum of its proper divisors (54991247210).

57066388390 is a wasteful number, since it uses less digits than its factorization.

57066388390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518785367.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 57066388390 in words is "fifty-seven billion, sixty-six million, three hundred eighty-eight thousand, three hundred ninety".