5266378321660 has 24 divisors (see below), whose sum is σ = 11059861268736. Its totient is φ = 2106462415680.

The previous prime is 5266378321643. The next prime is 5266378321681. The reversal of 5266378321660 is 661238736625.

It is a congruent number.

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, 5070331 + ... + 6020050.

It is an arithmetic number, because the mean of its divisors is an integer number (460827552864).

Almost surely, 2^{5266378321660} is an apocalyptic number.

It is an amenable number.

5266378321660 is an abundant number, since it is smaller than the sum of its proper divisors (5793482947076).

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

5266378321660 is a wasteful number, since it uses less digits than its factorization.

5266378321660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11114133 (or 11114131 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 5266378321660 in words is "five trillion, two hundred sixty-six billion, three hundred seventy-eight million, three hundred twenty-one thousand, six hundred sixty".