66022660626660 has 72 divisors (see below), whose sum is σ = 200269902268800. Its totient is φ = 17605940413248.

The previous prime is 66022660626649. The next prime is 66022660626679. The reversal of 66022660626660 is 6662606622066.

It is a junction number, because it is equal to n+sod(n) for n = 66022660626597 and 66022660626606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32968741 + ... + 34913939.

It is an arithmetic number, because the mean of its divisors is an integer number (2781526420400).

Almost surely, 2^{66022660626660} is an apocalyptic number.

66022660626660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66022660626660 is an abundant number, since it is smaller than the sum of its proper divisors (134247241642140).

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

66022660626660 is a wasteful number, since it uses less digits than its factorization.

66022660626660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133777 (or 2133772 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 54.

The spelling of 66022660626660 in words is "sixty-six trillion, twenty-two billion, six hundred sixty million, six hundred twenty-six thousand, six hundred sixty".