68072158 has 16 divisors (see below), whose sum is σ = 127304064. Its totient is φ = 26521560.

The previous prime is 68072153. The next prime is 68072161. The reversal of 68072158 is 85127086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68072153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220860 + ... + 221167.

It is an arithmetic number, because the mean of its divisors is an integer number (7956504).

Almost surely, 2^68072158 is an apocalyptic number.

68072158 is a deficient number, since it is larger than the sum of its proper divisors (59231906).

68072158 is a wasteful number, since it uses less digits than its factorization.

68072158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442047.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 68072158 is about 8250.5853125703. The cubic root of 68072158 is about 408.3098336978.

The spelling of 68072158 in words is "sixty-eight million, seventy-two thousand, one hundred fifty-eight".