172668150454 has 4 divisors (see below), whose sum is σ = 259002225684. Its totient is φ = 86334075226.

The previous prime is 172668150419. The next prime is 172668150491. The reversal of 172668150454 is 454051866271.

172668150454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×172668150454² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 172668150398 and 172668150407.

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 as a sum of consecutive naturals, namely, 43167037612 + ... + 43167037615.

It is an arithmetic number, because the mean of its divisors is an integer number (64750556421).

Almost surely, 2^172668150454 is an apocalyptic number.

172668150454 is a deficient number, since it is larger than the sum of its proper divisors (86334075230).

172668150454 is an equidigital number, since it uses as much as digits as its factorization.

172668150454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86334075229.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 172668150454 in words is "one hundred seventy-two billion, six hundred sixty-eight million, one hundred fifty thousand, four hundred fifty-four".