168072622 has 4 divisors (see below), whose sum is σ = 252108936. Its totient is φ = 84036310.

The previous prime is 168072601. The next prime is 168072623. The reversal of 168072622 is 226270861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226270861 = 113 ⋅2002397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168072623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42018154 + ... + 42018157.

It is an arithmetic number, because the mean of its divisors is an integer number (63027234).

Almost surely, 2^168072622 is an apocalyptic number.

168072622 is a deficient number, since it is larger than the sum of its proper divisors (84036314).

168072622 is an equidigital number, since it uses as much as digits as its factorization.

168072622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84036313.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 168072622 is about 12964.2825486025. The cubic root of 168072622 is about 551.8643312002.

The spelling of 168072622 in words is "one hundred sixty-eight million, seventy-two thousand, six hundred twenty-two".