40821672016 has 10 divisors (see below), whose sum is σ = 79091989562. Its totient is φ = 20410836000.

The previous prime is 40821671993. The next prime is 40821672037. The reversal of 40821672016 is 61027612804.

It can be written as a sum of positive squares in only one way, i.e., 22140249616 + 18681422400 = 148796^2 + 136680^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275677235 + ... + 1275677266.

Almost surely, 2^40821672016 is an apocalyptic number.

It is an amenable number.

40821672016 is a deficient number, since it is larger than the sum of its proper divisors (38270317546).

40821672016 is a wasteful number, since it uses less digits than its factorization.

40821672016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551354509 (or 2551354503 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 40821672016 in words is "forty billion, eight hundred twenty-one million, six hundred seventy-two thousand, sixteen".