1662632434673 has 6 divisors (see below), whose sum is σ = 1934082628146. Its totient is φ = 1425113515392.

The previous prime is 1662632434669. The next prime is 1662632434717. The reversal of 1662632434673 is 3764342362661.

It can be written as a sum of positive squares in only one way, i.e., 1370229442624 + 292402992049 = 1170568^2 + 540743^2 .

It is not a de Polignac number, because 1662632434673 - 2² = 1662632434669 is a prime.

It is a super-2 number, since 2×1662632434673² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662632434613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16965637040 + ... + 16965637137.

It is an arithmetic number, because the mean of its divisors is an integer number (322347104691).

Almost surely, 2^{1662632434673} is an apocalyptic number.

It is an amenable number.

1662632434673 is a deficient number, since it is larger than the sum of its proper divisors (271450193473).

1662632434673 is an equidigital number, since it uses as much as digits as its factorization.

1662632434673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33931274191 (or 33931274184 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 53.

The spelling of 1662632434673 in words is "one trillion, six hundred sixty-two billion, six hundred thirty-two million, four hundred thirty-four thousand, six hundred seventy-three".