1660655631595 has 16 divisors (see below), whose sum is σ = 2080164071232. Its totient is φ = 1270313763840.

The previous prime is 1660655631571. The next prime is 1660655631599. The reversal of 1660655631595 is 5951365560661.

It is not a de Polignac number, because 1660655631595 - 2⁹ = 1660655631083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1660655631599) 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, 2222826 + ... + 2874415.

It is an arithmetic number, because the mean of its divisors is an integer number (130010254452).

Almost surely, 2^{1660655631595} is an apocalyptic number.

1660655631595 is a deficient number, since it is larger than the sum of its proper divisors (419508439637).

1660655631595 is a wasteful number, since it uses less digits than its factorization.

1660655631595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100102.

The product of its (nonzero) digits is 21870000, while the sum is 58.

The spelling of 1660655631595 in words is "one trillion, six hundred sixty billion, six hundred fifty-five million, six hundred thirty-one thousand, five hundred ninety-five".