21652614506116 has 24 divisors (see below), whose sum is σ = 41477890797504. Its totient is φ = 9808506720480.

The previous prime is 21652614506113. The next prime is 21652614506119. The reversal of 21652614506116 is 61160541625612.

It is an interprime number because it is at equal distance from previous prime (21652614506113) and next prime (21652614506119).

It is not an unprimeable number, because it can be changed into a prime (21652614506113) 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, 839756520 + ... + 839782303.

It is an arithmetic number, because the mean of its divisors is an integer number (1728245449896).

Almost surely, 2^{21652614506116} is an apocalyptic number.

It is an amenable number.

21652614506116 is a deficient number, since it is larger than the sum of its proper divisors (19825276291388).

21652614506116 is a wasteful number, since it uses less digits than its factorization.

21652614506116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679539131 (or 1679539129 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 21652614506116 in words is "twenty-one trillion, six hundred fifty-two billion, six hundred fourteen million, five hundred six thousand, one hundred sixteen".