21167714416 has 10 divisors (see below), whose sum is σ = 41012446712. Its totient is φ = 10583857200.

The previous prime is 21167714401. The next prime is 21167714417. The reversal of 21167714416 is 61441776112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21167714417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661491060 + ... + 661491091.

Almost surely, 2^21167714416 is an apocalyptic number.

It is an amenable number.

21167714416 is a deficient number, since it is larger than the sum of its proper divisors (19844732296).

21167714416 is a wasteful number, since it uses less digits than its factorization.

21167714416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322982159 (or 1322982153 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The spelling of 21167714416 in words is "twenty-one billion, one hundred sixty-seven million, seven hundred fourteen thousand, four hundred sixteen".