1600166561492 has 6 divisors (see below), whose sum is σ = 2800291482618. Its totient is φ = 800083280744.

The previous prime is 1600166561473. The next prime is 1600166561501. The reversal of 1600166561492 is 2941656610061.

It can be written as a sum of positive squares in only one way, i.e., 1404974019856 + 195192541636 = 1185316^2 + 441806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200020820183 + ... + 200020820190.

It is an arithmetic number, because the mean of its divisors is an integer number (466715247103).

Almost surely, 2^{1600166561492} is an apocalyptic number.

It is an amenable number.

1600166561492 is a deficient number, since it is larger than the sum of its proper divisors (1200124921126).

1600166561492 is a wasteful number, since it uses less digits than its factorization.

1600166561492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400041640377 (or 400041640375 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 1600166561492 in words is "one trillion, six hundred billion, one hundred sixty-six million, five hundred sixty-one thousand, four hundred ninety-two".