1660434522513 has 32 divisors (see below), whose sum is σ = 2418513788544. Its totient is φ = 1007162698752.

The previous prime is 1660434522479. The next prime is 1660434522553. The reversal of 1660434522513 is 3152254340661.

It is not a de Polignac number, because 1660434522513 - 2¹⁸ = 1660434260369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1660434522553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 809295 + ... + 1993947.

It is an arithmetic number, because the mean of its divisors is an integer number (75578555892).

Almost surely, 2^{1660434522513} is an apocalyptic number.

1660434522513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1660434522513 is a deficient number, since it is larger than the sum of its proper divisors (758079266031).

1660434522513 is a wasteful number, since it uses less digits than its factorization.

1660434522513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185185.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 1660434522513 in words is "one trillion, six hundred sixty billion, four hundred thirty-four million, five hundred twenty-two thousand, five hundred thirteen".