1066822015888 has 40 divisors (see below), whose sum is σ = 2228822658720. Its totient is φ = 493011452160.

The previous prime is 1066822015871. The next prime is 1066822015891. The reversal of 1066822015888 is 8885102286601.

It is a super-2 number, since 2×1066822015888² (a number of 25 digits) contains 22 as substring.

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, 42783670 + ... + 42808597.

It is an arithmetic number, because the mean of its divisors is an integer number (55720566468).

Almost surely, 2^{1066822015888} is an apocalyptic number.

It is an amenable number.

1066822015888 is an abundant number, since it is smaller than the sum of its proper divisors (1162000642832).

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

1066822015888 is a wasteful number, since it uses less digits than its factorization.

1066822015888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85592335 (or 85592329 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 1066822015888 in words is "one trillion, sixty-six billion, eight hundred twenty-two million, fifteen thousand, eight hundred eighty-eight".