57661545431059 has 16 divisors (see below), whose sum is σ = 58072054356000. Its totient is φ = 57252074019840.

The previous prime is 57661545431057. The next prime is 57661545431071. The reversal of 57661545431059 is 95013454516675.

It is a cyclic number.

It is not a de Polignac number, because 57661545431059 - 2¹ = 57661545431057 is a prime.

It is a super-2 number, since 2×57661545431059² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57661545430988 and 57661545431006.

It is not an unprimeable number, because it can be changed into a prime (57661545431057) 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, 377237869 + ... + 377390689.

It is an arithmetic number, because the mean of its divisors is an integer number (3629503397250).

Almost surely, 2^{57661545431059} is an apocalyptic number.

57661545431059 is a deficient number, since it is larger than the sum of its proper divisors (410508924941).

57661545431059 is a wasteful number, since it uses less digits than its factorization.

57661545431059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156198.

The product of its (nonzero) digits is 68040000, while the sum is 61.

The spelling of 57661545431059 in words is "fifty-seven trillion, six hundred sixty-one billion, five hundred forty-five million, four hundred thirty-one thousand, fifty-nine".