53664187891800 has 48 divisors (see below), whose sum is σ = 166358982466440. Its totient is φ = 14310450104320.

The previous prime is 53664187891759. The next prime is 53664187891817. The reversal of 53664187891800 is 819878146635.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44720155977 + ... + 44720157176.

Almost surely, 2^{53664187891800} is an apocalyptic number.

53664187891800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53664187891800 is an abundant number, since it is smaller than the sum of its proper divisors (112694794574640).

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

53664187891800 is a wasteful number, since it uses less digits than its factorization.

53664187891800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89440313172 (or 89440313163 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 53664187891800 in words is "fifty-three trillion, six hundred sixty-four billion, one hundred eighty-seven million, eight hundred ninety-one thousand, eight hundred".