21595452152 has 32 divisors (see below), whose sum is σ = 41060429280. Its totient is φ = 10646906880.

The previous prime is 21595452149. The next prime is 21595452191. The reversal of 21595452152 is 25125459512.

It is a super-2 number, since 2×21595452152² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135752 + ... + 248232.

It is an arithmetic number, because the mean of its divisors is an integer number (1283138415).

Almost surely, 2^21595452152 is an apocalyptic number.

It is an amenable number.

21595452152 is a deficient number, since it is larger than the sum of its proper divisors (19464977128).

21595452152 is a wasteful number, since it uses less digits than its factorization.

21595452152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112823 (or 112819 counting only the distinct ones).

The product of its digits is 180000, while the sum is 41.

The spelling of 21595452152 in words is "twenty-one billion, five hundred ninety-five million, four hundred fifty-two thousand, one hundred fifty-two".