57005105340720 has 80 divisors (see below), whose sum is σ = 176734571334912. Its totient is φ = 15199748970240.

The previous prime is 57005105340649. The next prime is 57005105340721. The reversal of 57005105340720 is 2704350150075.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (57005105340721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10329142 + ... + 14856021.

Almost surely, 2^{57005105340720} is an apocalyptic number.

It is an amenable number.

57005105340720 is an abundant number, since it is smaller than the sum of its proper divisors (119729465994192).

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

57005105340720 is a wasteful number, since it uses less digits than its factorization.

57005105340720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25194610 (or 25194604 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

Adding to 57005105340720 its reverse (2704350150075), we get a palindrome (59709455490795).

The spelling of 57005105340720 in words is "fifty-seven trillion, five billion, one hundred five million, three hundred forty thousand, seven hundred twenty".