21763067416 has 8 divisors (see below), whose sum is σ = 40805751420. Its totient is φ = 10881533704.

The previous prime is 21763067411. The next prime is 21763067437. The reversal of 21763067416 is 61476036712.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21763067416² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21763067411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360191706 + ... + 1360191721.

Almost surely, 2^21763067416 is an apocalyptic number.

It is an amenable number.

21763067416 is a deficient number, since it is larger than the sum of its proper divisors (19042684004).

21763067416 is a wasteful number, since it uses less digits than its factorization.

21763067416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720383433 (or 2720383429 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 21763067416 in words is "twenty-one billion, seven hundred sixty-three million, sixty-seven thousand, four hundred sixteen".