165146311242254 has 4 divisors (see below), whose sum is σ = 247719466863384. Its totient is φ = 82573155621126.

The previous prime is 165146311242173. The next prime is 165146311242257. The reversal of 165146311242254 is 452242113641561.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165146311242199 and 165146311242208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165146311242257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41286577810562 + ... + 41286577810565.

It is an arithmetic number, because the mean of its divisors is an integer number (61929866715846).

Almost surely, 2^{165146311242254} is an apocalyptic number.

165146311242254 is a deficient number, since it is larger than the sum of its proper divisors (82573155621130).

165146311242254 is an equidigital number, since it uses as much as digits as its factorization.

165146311242254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82573155621129.

The product of its digits is 1382400, while the sum is 47.

The spelling of 165146311242254 in words is "one hundred sixty-five trillion, one hundred forty-six billion, three hundred eleven million, two hundred forty-two thousand, two hundred fifty-four".