396021167776 has 24 divisors (see below), whose sum is σ = 839641034484. Its totient is φ = 182779000320.

The previous prime is 396021167723. The next prime is 396021167813. The reversal of 396021167776 is 677761120693.

It can be written as a sum of positive squares in 2 ways, for example, as 378840250000 + 17180917776 = 615500^2 + 131076^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475986565 + ... + 475987396.

Almost surely, 2^396021167776 is an apocalyptic number.

It is an amenable number.

396021167776 is an abundant number, since it is smaller than the sum of its proper divisors (443619866708).

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

396021167776 is a wasteful number, since it uses less digits than its factorization.

396021167776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951973984 (or 951973976 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 396021167776 in words is "three hundred ninety-six billion, twenty-one million, one hundred sixty-seven thousand, seven hundred seventy-six".