167216678404 has 24 divisors (see below), whose sum is σ = 298538495640. Its totient is φ = 81924071424.

The previous prime is 167216678401. The next prime is 167216678413. The reversal of 167216678404 is 404876612761.

It can be written as a sum of positive squares in 4 ways, for example, as 64206492100 + 103010186304 = 253390^2 + 320952^2 .

It is a super-2 number, since 2×167216678404² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (167216678401) 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, 349819 + ... + 675874.

It is an arithmetic number, because the mean of its divisors is an integer number (12439103985).

Almost surely, 2^167216678404 is an apocalyptic number.

It is an amenable number.

167216678404 is a deficient number, since it is larger than the sum of its proper divisors (131321817236).

167216678404 is a wasteful number, since it uses less digits than its factorization.

167216678404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026519 (or 1026517 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 167216678404 in words is "one hundred sixty-seven billion, two hundred sixteen million, six hundred seventy-eight thousand, four hundred four".