1066138548170 has 64 divisors (see below), whose sum is σ = 1988889154560. Its totient is φ = 411048691200.

The previous prime is 1066138548161. The next prime is 1066138548193. The reversal of 1066138548170 is 718458316601.

It is a happy number.

It is a super-2 number, since 2×1066138548170² (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 31 ways as a sum of consecutive naturals, for example, 93770246 + ... + 93781614.

It is an arithmetic number, because the mean of its divisors is an integer number (31076393040).

Almost surely, 2^{1066138548170} is an apocalyptic number.

1066138548170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066138548170 is a deficient number, since it is larger than the sum of its proper divisors (922750606390).

1066138548170 is a wasteful number, since it uses less digits than its factorization.

1066138548170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 1066138548170 in words is "one trillion, sixty-six billion, one hundred thirty-eight million, five hundred forty-eight thousand, one hundred seventy".