55679163813 has 24 divisors (see below), whose sum is σ = 98985181568. Its totient is φ = 29369228832.

The previous prime is 55679163811. The next prime is 55679163893. The reversal of 55679163813 is 31836197655.

55679163813 is a `hidden beast` number, since 5 + 567 + 9 + 1 + 63 + 8 + 13 = 666.

It is not a de Polignac number, because 55679163813 - 2¹ = 55679163811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55679163813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55679163811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33991345 + ... + 33992982.

Almost surely, 2^55679163813 is an apocalyptic number.

It is an amenable number.

55679163813 is a deficient number, since it is larger than the sum of its proper divisors (43306017755).

55679163813 is a wasteful number, since it uses less digits than its factorization.

55679163813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67984353 (or 67984350 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 55679163813 in words is "fifty-five billion, six hundred seventy-nine million, one hundred sixty-three thousand, eight hundred thirteen".