1066140180 has 288 divisors, whose sum is σ = 3824481024. Its totient is φ = 235395072.

The previous prime is 1066140169. The next prime is 1066140211. The reversal of 1066140180 is 810416601.

It is a super-2 number, since 2×1066140180² = 2273309766820864800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6162574 + ... + 6162746.

It is an arithmetic number, because the mean of its divisors is an integer number (13279448).

Almost surely, 2^1066140180 is an apocalyptic number.

1066140180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066140180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912240512).

1066140180 is an abundant number, since it is smaller than the sum of its proper divisors (2758340844).

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

1066140180 is a wasteful number, since it uses less digits than its factorization.

1066140180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1066140180 is about 32651.8020942183. The cubic root of 1066140180 is about 1021.5777773182.

Adding to 1066140180 its reverse (810416601), we get a palindrome (1876556781).

It can be divided in two parts, 1066 and 140180, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 1066140180 in words is "one billion, sixty-six million, one hundred forty thousand, one hundred eighty".