1506660066 has 24 divisors (see below), whose sum is σ = 3298087884. Its totient is φ = 497041920.

The previous prime is 1506660053. The next prime is 1506660121. The reversal of 1506660066 is 6600666051.

It can be written as a sum of positive squares in 2 ways, for example, as 1496065041 + 10595025 = 38679^2 + 3255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1506660066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429715 + ... + 433206.

Almost surely, 2^1506660066 is an apocalyptic number.

1506660066 is an abundant number, since it is smaller than the sum of its proper divisors (1791427818).

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

1506660066 is a wasteful number, since it uses less digits than its factorization.

1506660066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863026 (or 863023 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1506660066 is about 38815.7193157618. The cubic root of 1506660066 is about 1146.4059351565.

The spelling of 1506660066 in words is "one billion, five hundred six million, six hundred sixty thousand, sixty-six".