1660447357023 has 64 divisors (see below), whose sum is σ = 2731303995392. Its totient is φ = 873764236800.

The previous prime is 1660447357007. The next prime is 1660447357043. The reversal of 1660447357023 is 3207537440661.

It is not a de Polignac number, because 1660447357023 - 2⁴ = 1660447357007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660447357043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 225876798 + ... + 225884148.

It is an arithmetic number, because the mean of its divisors is an integer number (42676624928).

Almost surely, 2^{1660447357023} is an apocalyptic number.

1660447357023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1660447357023 is a deficient number, since it is larger than the sum of its proper divisors (1070856638369).

1660447357023 is a wasteful number, since it uses less digits than its factorization.

1660447357023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224.

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 1660447357023 in words is "one trillion, six hundred sixty billion, four hundred forty-seven million, three hundred fifty-seven thousand, twenty-three".