55165616151 has 4 divisors (see below), whose sum is σ = 73554154872. Its totient is φ = 36777077432.

The previous prime is 55165616059. The next prime is 55165616189. The reversal of 55165616151 is 15161656155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55165616151 - 2¹⁴ = 55165599767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55165616851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9194269356 + ... + 9194269361.

It is an arithmetic number, because the mean of its divisors is an integer number (18388538718).

Almost surely, 2^55165616151 is an apocalyptic number.

55165616151 is a deficient number, since it is larger than the sum of its proper divisors (18388538721).

55165616151 is a wasteful number, since it uses less digits than its factorization.

55165616151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18388538720.

The product of its digits is 135000, while the sum is 42.

The spelling of 55165616151 in words is "fifty-five billion, one hundred sixty-five million, six hundred sixteen thousand, one hundred fifty-one".