999997555311613 has 8 divisors (see below), whose sum is σ = 1025442721852416. Its totient is φ = 974602626021600.

The previous prime is 999997555311611. The next prime is 999997555311647. The reversal of 999997555311613 is 316113555799999.

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 999997555311613 - 2¹ = 999997555311611 is a prime.

It is a super-2 number, since 2×999997555311613² (a number of 31 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 (999997555311611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12559272381 + ... + 12559352002.

It is an arithmetic number, because the mean of its divisors is an integer number (128180340231552).

Almost surely, 2^{999997555311613} is an apocalyptic number.

It is an amenable number.

999997555311613 is a deficient number, since it is larger than the sum of its proper divisors (25445166540803).

999997555311613 is a wasteful number, since it uses less digits than its factorization.

999997555311613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25118625395.

The product of its digits is 2790065250, while the sum is 82.

The spelling of 999997555311613 in words is "nine hundred ninety-nine trillion, nine hundred ninety-seven billion, five hundred fifty-five million, three hundred eleven thousand, six hundred thirteen".