55691309185 has 8 divisors (see below), whose sum is σ = 67179465216. Its totient is φ = 44319784560.

The previous prime is 55691309153. The next prime is 55691309189. The reversal of 55691309185 is 58190319655.

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

It is not a de Polignac number, because 55691309185 - 2⁵ = 55691309153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55691309189) 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, 29156799 + ... + 29158708.

It is an arithmetic number, because the mean of its divisors is an integer number (8397433152).

Almost surely, 2^55691309185 is an apocalyptic number.

It is an amenable number.

55691309185 is a deficient number, since it is larger than the sum of its proper divisors (11488156031).

55691309185 is a wasteful number, since it uses less digits than its factorization.

55691309185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58315703.

The product of its (nonzero) digits is 1458000, while the sum is 52.

The spelling of 55691309185 in words is "fifty-five billion, six hundred ninety-one million, three hundred nine thousand, one hundred eighty-five".