557459491651 has 8 divisors (see below), whose sum is σ = 599927477184. Its totient is φ = 516066645120.

The previous prime is 557459491649. The next prime is 557459491661. The reversal of 557459491651 is 156194954755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557459491651 - 2¹ = 557459491649 is a prime.

It is a super-2 number, since 2×557459491651² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 557459491651.

It is not an unprimeable number, because it can be changed into a prime (557459491661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268783675 + ... + 268785748.

It is an arithmetic number, because the mean of its divisors is an integer number (74990934648).

Almost surely, 2^557459491651 is an apocalyptic number.

557459491651 is a deficient number, since it is larger than the sum of its proper divisors (42467985533).

557459491651 is a wasteful number, since it uses less digits than its factorization.

557459491651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537569501.

The product of its digits is 34020000, while the sum is 61.

The spelling of 557459491651 in words is "five hundred fifty-seven billion, four hundred fifty-nine million, four hundred ninety-one thousand, six hundred fifty-one".