126423203022165 has 16 divisors (see below), whose sum is σ = 231173856955008. Its totient is φ = 57793464238656.

The previous prime is 126423203022161. The next prime is 126423203022191. The reversal of 126423203022165 is 561220302324621.

It is not a de Polignac number, because 126423203022165 - 2² = 126423203022161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126423203022161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602015252382 + ... + 602015252591.

It is an arithmetic number, because the mean of its divisors is an integer number (14448366059688).

Almost surely, 2^{126423203022165} is an apocalyptic number.

126423203022165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126423203022165 is a deficient number, since it is larger than the sum of its proper divisors (104750653932843).

126423203022165 is a wasteful number, since it uses less digits than its factorization.

126423203022165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204030504988.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 126423203022165 its reverse (561220302324621), we get a palindrome (687643505346786).

The spelling of 126423203022165 in words is "one hundred twenty-six trillion, four hundred twenty-three billion, two hundred three million, twenty-two thousand, one hundred sixty-five".