57645150440 has 16 divisors (see below), whose sum is σ = 129701588580. Its totient is φ = 23058060160.

The previous prime is 57645150427. The next prime is 57645150449. The reversal of 57645150440 is 4405154675.

It can be written as a sum of positive squares in 2 ways, for example, as 49696001476 + 7949148964 = 222926^2 + 89158^2 .

It is not an unprimeable number, because it can be changed into a prime (57645150449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720564341 + ... + 720564420.

Almost surely, 2^57645150440 is an apocalyptic number.

It is an amenable number.

57645150440 is an abundant number, since it is smaller than the sum of its proper divisors (72056438140).

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

57645150440 is a wasteful number, since it uses less digits than its factorization.

57645150440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441128772 (or 1441128768 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 57645150440 in words is "fifty-seven billion, six hundred forty-five million, one hundred fifty thousand, four hundred forty".