1066978710 has 128 divisors (see below), whose sum is σ = 3270758400. Its totient is φ = 242455680.

The previous prime is 1066978697. The next prime is 1066978721. The reversal of 1066978710 is 178796601.

It is a super-2 number, since 2×1066978710² = 2276887135186528200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340531 + ... + 343649.

It is an arithmetic number, because the mean of its divisors is an integer number (25552800).

Almost surely, 2^1066978710 is an apocalyptic number.

1066978710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066978710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1635379200).

1066978710 is an abundant number, since it is smaller than the sum of its proper divisors (2203779690).

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

1066978710 is a wasteful number, since it uses less digits than its factorization.

1066978710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 1066978710 is about 32664.6400561831. The cubic root of 1066978710 is about 1021.8455342063.

The spelling of 1066978710 in words is "one billion, sixty-six million, nine hundred seventy-eight thousand, seven hundred ten".