55166722033886 has 48 divisors (see below), whose sum is σ = 87486585656400. Its totient is φ = 26086161628800.

The previous prime is 55166722033817. The next prime is 55166722033919. The reversal of 55166722033886 is 68833022766155.

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 23 ways as a sum of consecutive naturals, for example, 985320785 + ... + 985376771.

It is an arithmetic number, because the mean of its divisors is an integer number (1822637201175).

Almost surely, 2^{55166722033886} is an apocalyptic number.

55166722033886 is a deficient number, since it is larger than the sum of its proper divisors (32319863622514).

55166722033886 is a wasteful number, since it uses less digits than its factorization.

55166722033886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58377 (or 58358 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 55166722033886 in words is "fifty-five trillion, one hundred sixty-six billion, seven hundred twenty-two million, thirty-three thousand, eight hundred eighty-six".