55166610599 has 8 divisors (see below), whose sum is σ = 58073879040. Its totient is φ = 52259718456.

The previous prime is 55166610581. The next prime is 55166610607. The reversal of 55166610599 is 99501666155.

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 55166610599 - 2¹² = 55166606503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55166610599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166610799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236714 + ... + 407880.

It is an arithmetic number, because the mean of its divisors is an integer number (7259234880).

Almost surely, 2^55166610599 is an apocalyptic number.

55166610599 is a deficient number, since it is larger than the sum of its proper divisors (2907268441).

55166610599 is a wasteful number, since it uses less digits than its factorization.

55166610599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188149.

The product of its (nonzero) digits is 2187000, while the sum is 53.

It can be divided in two parts, 551666 and 10599, that added together give a palindrome (562265).

The spelling of 55166610599 in words is "fifty-five billion, one hundred sixty-six million, six hundred ten thousand, five hundred ninety-nine".