1600156106661 has 16 divisors (see below), whose sum is σ = 2440170635264. Its totient is φ = 913685847984.

The previous prime is 1600156106599. The next prime is 1600156106677. The reversal of 1600156106661 is 1666016510061.

It is not a de Polignac number, because 1600156106661 - 2¹⁷ = 1600155975589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600156106261) 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 15 ways as a sum of consecutive naturals, for example, 28682725 + ... + 28738458.

It is an arithmetic number, because the mean of its divisors is an integer number (152510664704).

Almost surely, 2^{1600156106661} is an apocalyptic number.

It is an amenable number.

1600156106661 is a deficient number, since it is larger than the sum of its proper divisors (840014528603).

1600156106661 is a wasteful number, since it uses less digits than its factorization.

1600156106661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57422520.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 1600156106661 in words is "one trillion, six hundred billion, one hundred fifty-six million, one hundred six thousand, six hundred sixty-one".