165223525016630 has 16 divisors (see below), whose sum is σ = 303730054499520. Its totient is φ = 64683252346752.

The previous prime is 165223525016629. The next prime is 165223525016713. The reversal of 165223525016630 is 36610525322561.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175769706995 + ... + 175769707934.

It is an arithmetic number, because the mean of its divisors is an integer number (18983128406220).

Almost surely, 2^{165223525016630} is an apocalyptic number.

165223525016630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165223525016630 is a deficient number, since it is larger than the sum of its proper divisors (138506529482890).

165223525016630 is a wasteful number, since it uses less digits than its factorization.

165223525016630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351539414983.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 165223525016630 in words is "one hundred sixty-five trillion, two hundred twenty-three billion, five hundred twenty-five million, sixteen thousand, six hundred thirty".