1066425416 has 64 divisors (see below), whose sum is σ = 2388960000. Its totient is φ = 445845120.

The previous prime is 1066425403. The next prime is 1066425421. The reversal of 1066425416 is 6145246601.

It is a super-2 number, since 2×1066425416² = 2274526335781546112, 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 15 ways as a sum of consecutive naturals, for example, 107765 + ... + 117243.

It is an arithmetic number, because the mean of its divisors is an integer number (37327500).

Almost surely, 2^1066425416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066425416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194480000).

1066425416 is an abundant number, since it is smaller than the sum of its proper divisors (1322534584).

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

1066425416 is an equidigital number, since it uses as much as digits as its factorization.

1066425416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1066425416 is about 32656.1696467911. The cubic root of 1066425416 is about 1021.6688737744.

The spelling of 1066425416 in words is "one billion, sixty-six million, four hundred twenty-five thousand, four hundred sixteen".