168412077 has 12 divisors (see below), whose sum is σ = 251650620. Its totient is φ = 108403008.

The previous prime is 168412073. The next prime is 168412087. The reversal of 168412077 is 770214861.

It can be written as a sum of positive squares in 2 ways, for example, as 110439081 + 57972996 = 10509^2 + 7614^2 .

It is not a de Polignac number, because 168412077 - 2² = 168412073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168412073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322368 + ... + 322889.

It is an arithmetic number, because the mean of its divisors is an integer number (20970885).

Almost surely, 2^168412077 is an apocalyptic number.

It is an amenable number.

168412077 is a deficient number, since it is larger than the sum of its proper divisors (83238543).

168412077 is a wasteful number, since it uses less digits than its factorization.

168412077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645292 (or 645289 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 168412077 is about 12977.3678764224. The cubic root of 168412077 is about 552.2356134218.

The spelling of 168412077 in words is "one hundred sixty-eight million, four hundred twelve thousand, seventy-seven".