57354123154640 has 80 divisors (see below), whose sum is σ = 143612819347536. Its totient is φ = 21175886745600.

The previous prime is 57354123154639. The next prime is 57354123154661. The reversal of 57354123154640 is 4645132145375.

It can be written as a sum of positive squares in 8 ways, for example, as 5142862412944 + 52211260741696 = 2267788^2 + 7225736^2 .

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

It is a super-2 number, since 2×57354123154640² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20439830 + ... + 23075850.

Almost surely, 2^{57354123154640} is an apocalyptic number.

It is an amenable number.

57354123154640 is an abundant number, since it is smaller than the sum of its proper divisors (86258696192896).

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

57354123154640 is a wasteful number, since it uses less digits than its factorization.

57354123154640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656968 (or 2656962 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 57354123154640 in words is "fifty-seven trillion, three hundred fifty-four billion, one hundred twenty-three million, one hundred fifty-four thousand, six hundred forty".