1066354520 has 128 divisors (see below), whose sum is σ = 3121597440. Its totient is φ = 317898240.

The previous prime is 1066354501. The next prime is 1066354547. The reversal of 1066354520 is 254536601.

It is a super-2 number, since 2×1066354520² = 2274223924648860800, 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 31 ways as a sum of consecutive naturals, for example, 63314 + ... + 78366.

It is an arithmetic number, because the mean of its divisors is an integer number (24387480).

Almost surely, 2^1066354520 is an apocalyptic number.

1066354520 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 1066354520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560798720).

1066354520 is an abundant number, since it is smaller than the sum of its proper divisors (2055242920).

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

1066354520 is a wasteful number, since it uses less digits than its factorization.

1066354520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15105 (or 15101 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1066354520 is about 32655.0841370835. The cubic root of 1066354520 is about 1021.6462330782.

The spelling of 1066354520 in words is "one billion, sixty-six million, three hundred fifty-four thousand, five hundred twenty".