57156060444 has 192 divisors, whose sum is σ = 163404595200. Its totient is φ = 15203365632.

The previous prime is 57156060431. The next prime is 57156060469. The reversal of 57156060444 is 44406065175.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 57156060396 and 57156060405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8271639 + ... + 8278545.

It is an arithmetic number, because the mean of its divisors is an integer number (851065600).

Almost surely, 2^57156060444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57156060444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81702297600).

57156060444 is an abundant number, since it is smaller than the sum of its proper divisors (106248534756).

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

57156060444 is a wasteful number, since it uses less digits than its factorization.

57156060444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072 (or 7070 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 57156060444 in words is "fifty-seven billion, one hundred fifty-six million, sixty thousand, four hundred forty-four".