55695766191156 has 1536 divisors, whose sum is σ = 198273976320000. Its totient is φ = 13109873172480.

The previous prime is 55695766191113. The next prime is 55695766191187. The reversal of 55695766191156 is 65119166759655.

55695766191156 is a `hidden beast` number, since 5 + 569 + 5 + 7 + 6 + 6 + 1 + 9 + 1 + 1 + 56 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 45915717606 + ... + 45915718818.

It is an arithmetic number, because the mean of its divisors is an integer number (129084620000).

Almost surely, 2^{55695766191156} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55695766191156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99136988160000).

55695766191156 is an abundant number, since it is smaller than the sum of its proper divisors (142578210128844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55695766191156 is a wasteful number, since it uses less digits than its factorization.

55695766191156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494 (or 1486 counting only the distinct ones).

The product of its digits is 459270000, while the sum is 72.

The spelling of 55695766191156 in words is "fifty-five trillion, six hundred ninety-five billion, seven hundred sixty-six million, one hundred ninety-one thousand, one hundred fifty-six".