524324431661 has 16 divisors (see below), whose sum is σ = 560926800000. Its totient is φ = 488678800896.

The previous prime is 524324431649. The next prime is 524324431669. The reversal of 524324431661 is 166134423425.

It is a cyclic number.

It is not a de Polignac number, because 524324431661 - 2⁶ = 524324431597 is a prime.

It is a super-2 number, since 2×524324431661² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524324431669) 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, 442556 + ... + 1115573.

It is an arithmetic number, because the mean of its divisors is an integer number (35057925000).

Almost surely, 2^524324431661 is an apocalyptic number.

It is an amenable number.

524324431661 is a deficient number, since it is larger than the sum of its proper divisors (36602368339).

524324431661 is a wasteful number, since it uses less digits than its factorization.

524324431661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558436.

The product of its digits is 414720, while the sum is 41.

The spelling of 524324431661 in words is "five hundred twenty-four billion, three hundred twenty-four million, four hundred thirty-one thousand, six hundred sixty-one".