1066020992 has 64 divisors (see below), whose sum is σ = 2290226400. Its totient is φ = 492595200.

The previous prime is 1066020961. The next prime is 1066021003. The reversal of 1066020992 is 2990206601.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1066020992² = 2272801510769328128, which 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, 94367 + ... + 105057.

Almost surely, 2^1066020992 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 1066020992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145113200).

1066020992 is an abundant number, since it is smaller than the sum of its proper divisors (1224205408).

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

1066020992 is a wasteful number, since it uses less digits than its factorization.

1066020992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10765 (or 10753 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1066020992 is about 32649.9769065768. The cubic root of 1066020992 is about 1021.5397071682.

The spelling of 1066020992 in words is "one billion, sixty-six million, twenty thousand, nine hundred ninety-two".