53666678812824 has 192 divisors, whose sum is σ = 181326955680000. Its totient is φ = 13930566831360.

The previous prime is 53666678812793. The next prime is 53666678812889. The reversal of 53666678812824 is 42821887666635.

It is a super-2 number, since 2×53666678812824² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5688702 + ... + 11819250.

It is an arithmetic number, because the mean of its divisors is an integer number (944411227500).

Almost surely, 2^{53666678812824} 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 53666678812824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90663477840000).

53666678812824 is an abundant number, since it is smaller than the sum of its proper divisors (127660276867176).

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

53666678812824 is a wasteful number, since it uses less digits than its factorization.

53666678812824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132158 (or 6132151 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 72.

The spelling of 53666678812824 in words is "fifty-three trillion, six hundred sixty-six billion, six hundred seventy-eight million, eight hundred twelve thousand, eight hundred twenty-four".