165656595364976 has 40 divisors (see below), whose sum is σ = 337854027245520. Its totient is φ = 78468504731136.

The previous prime is 165656595364973. The next prime is 165656595364993. The reversal of 165656595364976 is 679463595656561.

It is a junction number, because it is equal to n+sod(n) for n = 165656595364894 and 165656595364903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165656595364973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61615796 + ... + 64248108.

It is an arithmetic number, because the mean of its divisors is an integer number (8446350681138).

Almost surely, 2^{165656595364976} is an apocalyptic number.

165656595364976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165656595364976 is an abundant number, since it is smaller than the sum of its proper divisors (172197431880544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165656595364976 is a wasteful number, since it uses less digits than its factorization.

165656595364976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839353 (or 2839347 counting only the distinct ones).

The product of its digits is 33067440000, while the sum is 83.

The spelling of 165656595364976 in words is "one hundred sixty-five trillion, six hundred fifty-six billion, five hundred ninety-five million, three hundred sixty-four thousand, nine hundred seventy-six".