55840315422866 has 16 divisors (see below), whose sum is σ = 90206008096344. Its totient is φ = 25771761373824.

The previous prime is 55840315422851. The next prime is 55840315422869. The reversal of 55840315422866 is 66822451304855.

It can be written as a sum of positive squares in 4 ways, for example, as 29092851900841 + 26747463522025 = 5393779^2 + 5171795^2 .

It is not an unprimeable number, because it can be changed into a prime (55840315422869) 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, 27841361 + ... + 29779556.

Almost surely, 2^{55840315422866} is an apocalyptic number.

55840315422866 is a deficient number, since it is larger than the sum of its proper divisors (34365692673478).

55840315422866 is a wasteful number, since it uses less digits than its factorization.

55840315422866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57658205.

The product of its (nonzero) digits is 55296000, while the sum is 59.

The spelling of 55840315422866 in words is "fifty-five trillion, eight hundred forty billion, three hundred fifteen million, four hundred twenty-two thousand, eight hundred sixty-six".