55491658104648 has 128 divisors (see below), whose sum is σ = 140580644601600. Its totient is φ = 18252235567104.

The previous prime is 55491658104629. The next prime is 55491658104689. The reversal of 55491658104648 is 84640185619455.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464511661 + ... + 464631107.

It is an arithmetic number, because the mean of its divisors is an integer number (1098286285950).

Almost surely, 2^{55491658104648} is an apocalyptic number.

It is an amenable number.

55491658104648 is an abundant number, since it is smaller than the sum of its proper divisors (85088986496952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55491658104648 is a wasteful number, since it uses less digits than its factorization.

55491658104648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120439 (or 120435 counting only the distinct ones).

The product of its (nonzero) digits is 165888000, while the sum is 66.

The spelling of 55491658104648 in words is "fifty-five trillion, four hundred ninety-one billion, six hundred fifty-eight million, one hundred four thousand, six hundred forty-eight".