55166788471 has 8 divisors (see below), whose sum is σ = 56974313520. Its totient is φ = 53375923008.

The previous prime is 55166788433. The next prime is 55166788499. The reversal of 55166788471 is 17488766155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55166788471 - 2³³ = 46576853879 is a prime.

It is a super-3 number, since 3×55166788471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166786471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4158166 + ... + 4171411.

It is an arithmetic number, because the mean of its divisors is an integer number (7121789190).

Almost surely, 2^55166788471 is an apocalyptic number.

55166788471 is a deficient number, since it is larger than the sum of its proper divisors (1807525049).

55166788471 is a wasteful number, since it uses less digits than its factorization.

55166788471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329793.

The product of its digits is 11289600, while the sum is 58.

The spelling of 55166788471 in words is "fifty-five billion, one hundred sixty-six million, seven hundred eighty-eight thousand, four hundred seventy-one".