55326647532066 has 64 divisors (see below), whose sum is σ = 111474873409536. Its totient is φ = 18305814960000.

The previous prime is 55326647532043. The next prime is 55326647532113. The reversal of 55326647532066 is 66023574662355.

It is a happy number.

It is a super-2 number, since 2×55326647532066² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2982077046 + ... + 2982095598.

It is an arithmetic number, because the mean of its divisors is an integer number (1741794897024).

Almost surely, 2^{55326647532066} is an apocalyptic number.

55326647532066 is an abundant number, since it is smaller than the sum of its proper divisors (56148225877470).

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

55326647532066 is a wasteful number, since it uses less digits than its factorization.

55326647532066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25487.

The product of its (nonzero) digits is 163296000, while the sum is 60.

The spelling of 55326647532066 in words is "fifty-five trillion, three hundred twenty-six billion, six hundred forty-seven million, five hundred thirty-two thousand, sixty-six".