556665161485 has 32 divisors (see below), whose sum is σ = 681577135200. Its totient is φ = 436338524160.

The previous prime is 556665161453. The next prime is 556665161489. The reversal of 556665161485 is 584161566655.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 328468826884 + 228196334601 = 573122^2 + 477699^2 .

It is not a de Polignac number, because 556665161485 - 2⁵ = 556665161453 is a prime.

It is a super-2 number, since 2×556665161485² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556665161489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175657981 + ... + 175661149.

It is an arithmetic number, because the mean of its divisors is an integer number (21299285475).

Almost surely, 2^556665161485 is an apocalyptic number.

It is an amenable number.

556665161485 is a deficient number, since it is larger than the sum of its proper divisors (124911973715).

556665161485 is a wasteful number, since it uses less digits than its factorization.

556665161485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281.

The product of its digits is 25920000, while the sum is 58.

The spelling of 556665161485 in words is "five hundred fifty-six billion, six hundred sixty-five million, one hundred sixty-one thousand, four hundred eighty-five".