171223554028748 has 48 divisors (see below), whose sum is σ = 342240577242816. Its totient is φ = 74351145749760.

The previous prime is 171223554028741. The next prime is 171223554028753. The reversal of 171223554028748 is 847820455322171.

It is a happy number.

It is a super-2 number, since 2×171223554028748² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (171223554028741) 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, 1173398411 + ... + 1173544322.

It is an arithmetic number, because the mean of its divisors is an integer number (7130012025892).

Almost surely, 2^{171223554028748} is an apocalyptic number.

It is an amenable number.

171223554028748 is a deficient number, since it is larger than the sum of its proper divisors (171017023214068).

171223554028748 is a wasteful number, since it uses less digits than its factorization.

171223554028748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346942834 (or 2346942832 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 59.

The spelling of 171223554028748 in words is "one hundred seventy-one trillion, two hundred twenty-three billion, five hundred fifty-four million, twenty-eight thousand, seven hundred forty-eight".