1665406113302 has 16 divisors (see below), whose sum is σ = 2532962709792. Its totient is φ = 821090911680.

The previous prime is 1665406113269. The next prime is 1665406113361. The reversal of 1665406113302 is 2033116045661.

It is a super-2 number, since 2×1665406113302² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838349 + ... + 2008392.

It is an arithmetic number, because the mean of its divisors is an integer number (158310169362).

Almost surely, 2^{1665406113302} is an apocalyptic number.

1665406113302 is a deficient number, since it is larger than the sum of its proper divisors (867556596490).

1665406113302 is a wasteful number, since it uses less digits than its factorization.

1665406113302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850823.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 1665406113302 in words is "one trillion, six hundred sixty-five billion, four hundred six million, one hundred thirteen thousand, three hundred two".