21652601241512 has 8 divisors (see below), whose sum is σ = 40598627327850. Its totient is φ = 10826300620752.

The previous prime is 21652601241493. The next prime is 21652601241527. The reversal of 21652601241512 is 21514210625612.

It can be written as a sum of positive squares in only one way, i.e., 21635577776836 + 17023464676 = 4651406^2 + 130474^2 .

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

It is a super-2 number, since 2×21652601241512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1353287577587 + ... + 1353287577602.

Almost surely, 2^{21652601241512} is an apocalyptic number.

It is an amenable number.

21652601241512 is a deficient number, since it is larger than the sum of its proper divisors (18946026086338).

21652601241512 is a wasteful number, since it uses less digits than its factorization.

21652601241512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706575155195 (or 2706575155191 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 21652601241512 in words is "twenty-one trillion, six hundred fifty-two billion, six hundred one million, two hundred forty-one thousand, five hundred twelve".