57166525461 has 16 divisors (see below), whose sum is σ = 79740535680. Its totient is φ = 36360287040.

The previous prime is 57166525433. The next prime is 57166525463. The reversal of 57166525461 is 16452566175.

It is not a de Polignac number, because 57166525461 - 2¹¹ = 57166523413 is a prime.

It is a super-2 number, since 2×57166525461² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57166525461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57166525463) 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, 1038070 + ... + 1091751.

It is an arithmetic number, because the mean of its divisors is an integer number (4983783480).

Almost surely, 2^57166525461 is an apocalyptic number.

It is an amenable number.

57166525461 is a deficient number, since it is larger than the sum of its proper divisors (22574010219).

57166525461 is a wasteful number, since it uses less digits than its factorization.

57166525461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130236.

The product of its digits is 1512000, while the sum is 48.

The spelling of 57166525461 in words is "fifty-seven billion, one hundred sixty-six million, five hundred twenty-five thousand, four hundred sixty-one".