1066608972 has 120 divisors (see below), whose sum is σ = 3275938512. Its totient is φ = 298339200.

The previous prime is 1066608899. The next prime is 1066608989. The reversal of 1066608972 is 2798066601.

It is a super-2 number, since 2×1066608972² = 2275309398301793568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34822 + ... + 57842.

Almost surely, 2^1066608972 is an apocalyptic number.

1066608972 is a gapful number since it is divisible by the number (12) 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 1066608972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637969256).

1066608972 is an abundant number, since it is smaller than the sum of its proper divisors (2209329540).

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

1066608972 is a wasteful number, since it uses less digits than its factorization.

1066608972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23061 (or 23050 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1066608972 is about 32658.9799595762. The cubic root of 1066608972 is about 1021.7274878729.

The spelling of 1066608972 in words is "one billion, sixty-six million, six hundred eight thousand, nine hundred seventy-two".