1506610061009 has 4 divisors (see below), whose sum is σ = 1506669241140. Its totient is φ = 1506550880880.

The previous prime is 1506610060987. The next prime is 1506610061027. The reversal of 1506610061009 is 9001600166051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1154866174609 + 351743886400 = 1074647^2 + 593080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1506610061009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1506610061009.

It is not an unprimeable number, because it can be changed into a prime (1506610061909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29551862 + ... + 29602799.

It is an arithmetic number, because the mean of its divisors is an integer number (376667310285).

Almost surely, 2^{1506610061009} is an apocalyptic number.

It is an amenable number.

1506610061009 is a deficient number, since it is larger than the sum of its proper divisors (59180131).

1506610061009 is an equidigital number, since it uses as much as digits as its factorization.

1506610061009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59180130.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 1506610061009 in words is "one trillion, five hundred six billion, six hundred ten million, sixty-one thousand, nine".