665162140535 has 16 divisors (see below), whose sum is σ = 806495192832. Its totient is φ = 526596940800.

The previous prime is 665162140523. The next prime is 665162140553. The reversal of 665162140535 is 535041261566.

It is not a de Polignac number, because 665162140535 - 2¹² = 665162136439 is a prime.

It is a super-2 number, since 2×665162140535² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 6013025 + ... + 6122645.

It is an arithmetic number, because the mean of its divisors is an integer number (50405949552).

Almost surely, 2^665162140535 is an apocalyptic number.

665162140535 is a deficient number, since it is larger than the sum of its proper divisors (141333052297).

665162140535 is a wasteful number, since it uses less digits than its factorization.

665162140535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122234.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 665162140535 in words is "six hundred sixty-five billion, one hundred sixty-two million, one hundred forty thousand, five hundred thirty-five".