21161300915032 has 8 divisors (see below), whose sum is σ = 39677439215700. Its totient is φ = 10580650457512.

The previous prime is 21161300915021. The next prime is 21161300915093. The reversal of 21161300915032 is 23051900316112.

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

It is a super-3 number, since 3×21161300915032³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322581307182 + ... + 1322581307197.

Almost surely, 2^{21161300915032} is an apocalyptic number.

It is an amenable number.

21161300915032 is a deficient number, since it is larger than the sum of its proper divisors (18516138300668).

21161300915032 is a wasteful number, since it uses less digits than its factorization.

21161300915032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645162614385 (or 2645162614381 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 21161300915032 in words is "twenty-one trillion, one hundred sixty-one billion, three hundred million, nine hundred fifteen thousand, thirty-two".