55323788778668 has 24 divisors (see below), whose sum is σ = 102714701107200. Its totient is φ = 25999658708688.

The previous prime is 55323788778631. The next prime is 55323788778719. The reversal of 55323788778668 is 86687788732355.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865913928 + ... + 2865933231.

It is an arithmetic number, because the mean of its divisors is an integer number (4279779212800).

Almost surely, 2^{55323788778668} is an apocalyptic number.

It is an amenable number.

55323788778668 is a deficient number, since it is larger than the sum of its proper divisors (47390912328532).

55323788778668 is a wasteful number, since it uses less digits than its factorization.

55323788778668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731847309 (or 5731847307 counting only the distinct ones).

The product of its digits is 22759833600, while the sum is 83.

The spelling of 55323788778668 in words is "fifty-five trillion, three hundred twenty-three billion, seven hundred eighty-eight million, seven hundred seventy-eight thousand, six hundred sixty-eight".