55616171619 has 8 divisors (see below), whose sum is σ = 78516948240. Its totient is φ = 34896421376.

The previous prime is 55616171617. The next prime is 55616171627. The reversal of 55616171619 is 91617161655.

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 55616171619 - 2¹ = 55616171617 is a prime.

It is a super-2 number, since 2×55616171619² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55616171617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545256534 + ... + 545256635.

It is an arithmetic number, because the mean of its divisors is an integer number (9814618530).

Almost surely, 2^55616171619 is an apocalyptic number.

55616171619 is a deficient number, since it is larger than the sum of its proper divisors (22900776621).

55616171619 is a wasteful number, since it uses less digits than its factorization.

55616171619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090513189.

The product of its digits is 340200, while the sum is 48.

The spelling of 55616171619 in words is "fifty-five billion, six hundred sixteen million, one hundred seventy-one thousand, six hundred nineteen".