167681412 has 72 divisors (see below), whose sum is σ = 433060992. Its totient is φ = 54696000.

The previous prime is 167681407. The next prime is 167681413. The reversal of 167681412 is 214186761.

It is a happy number.

167681412 is a `hidden beast` number, since 167 + 6 + 81 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (167681413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388837 + ... + 389267.

It is an arithmetic number, because the mean of its divisors is an integer number (6014736).

Almost surely, 2^167681412 is an apocalyptic number.

167681412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

167681412 is an abundant number, since it is smaller than the sum of its proper divisors (265379580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

167681412 is a wasteful number, since it uses less digits than its factorization.

167681412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 644 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 167681412 is about 12949.1857659082. The cubic root of 167681412 is about 551.4358208599.

The spelling of 167681412 in words is "one hundred sixty-seven million, six hundred eighty-one thousand, four hundred twelve".