662136888197 has 4 divisors (see below), whose sum is σ = 663166650720. Its totient is φ = 661107125676.

The previous prime is 662136888191. The next prime is 662136888199. The reversal of 662136888197 is 791888631266.

662136888197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 662136888197 - 2²⁶ = 662069779333 is a prime.

It is a super-2 number, since 2×662136888197² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662136888191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514880297 + ... + 514881582.

It is an arithmetic number, because the mean of its divisors is an integer number (165791662680).

Almost surely, 2^662136888197 is an apocalyptic number.

It is an amenable number.

662136888197 is a deficient number, since it is larger than the sum of its proper divisors (1029762523).

662136888197 is a wasteful number, since it uses less digits than its factorization.

662136888197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029762522.

The product of its digits is 41803776, while the sum is 65.

The spelling of 662136888197 in words is "six hundred sixty-two billion, one hundred thirty-six million, eight hundred eighty-eight thousand, one hundred ninety-seven".