1506010565661 has 16 divisors (see below), whose sum is σ = 2348242389504. Its totient is φ = 840564036144.

The previous prime is 1506010565641. The next prime is 1506010565663. The reversal of 1506010565661 is 1665650106051.

It is not a de Polignac number, because 1506010565661 - 2²² = 1506006371357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1506010565663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833891991 + ... + 833893796.

It is an arithmetic number, because the mean of its divisors is an integer number (146765149344).

Almost surely, 2^{1506010565661} is an apocalyptic number.

It is an amenable number.

1506010565661 is a deficient number, since it is larger than the sum of its proper divisors (842231823843).

1506010565661 is a wasteful number, since it uses less digits than its factorization.

1506010565661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667785840.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 1506010565661 in words is "one trillion, five hundred six billion, ten million, five hundred sixty-five thousand, six hundred sixty-one".