1066521510 has 48 divisors (see below), whose sum is σ = 2776134816. Its totient is φ = 284079744.

The previous prime is 1066521497. The next prime is 1066521527. The reversal of 1066521510 is 151256601.

It is a happy number.

1066521510 is a `hidden beast` number, since 1 + 0 + 6 + 652 + 1 + 5 + 1 + 0 = 666.

It is a super-2 number, since 2×1066521510² = 2274936262585360200, 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 23 ways as a sum of consecutive naturals, for example, 78007 + ... + 90653.

It is an arithmetic number, because the mean of its divisors is an integer number (57836142).

Almost surely, 2^1066521510 is an apocalyptic number.

1066521510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066521510 is an abundant number, since it is smaller than the sum of its proper divisors (1709613306).

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

1066521510 is a wasteful number, since it uses less digits than its factorization.

1066521510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13597 (or 13594 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1066521510 is about 32657.6409129625. The cubic root of 1066521510 is about 1021.6995598710.

The spelling of 1066521510 in words is "one billion, sixty-six million, five hundred twenty-one thousand, five hundred ten".