55161491746 has 8 divisors (see below), whose sum is σ = 83297555100. Its totient is φ = 27395640048.

The previous prime is 55161491701. The next prime is 55161491747. The reversal of 55161491746 is 64719416155.

It can be written as a sum of positive squares in 2 ways, for example, as 54737749521 + 423742225 = 233961^2 + 20585^2 .

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

It is a super-2 number, since 2×55161491746² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55161491746.

It is not an unprimeable number, because it can be changed into a prime (55161491747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92552541 + ... + 92553136.

Almost surely, 2^55161491746 is an apocalyptic number.

55161491746 is a deficient number, since it is larger than the sum of its proper divisors (28136063354).

55161491746 is a wasteful number, since it uses less digits than its factorization.

55161491746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185105828.

The product of its digits is 907200, while the sum is 49.

The spelling of 55161491746 in words is "fifty-five billion, one hundred sixty-one million, four hundred ninety-one thousand, seven hundred forty-six".