21155141315032 has 16 divisors (see below), whose sum is σ = 39668447473200. Its totient is φ = 10576888655520.

The previous prime is 21155141315027. The next prime is 21155141315089. The reversal of 21155141315032 is 23051314155112.

It is a super-2 number, since 2×21155141315032² (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 85118407 + ... + 85366582.

It is an arithmetic number, because the mean of its divisors is an integer number (2479277967075).

Almost surely, 2^{21155141315032} is an apocalyptic number.

It is an amenable number.

21155141315032 is a deficient number, since it is larger than the sum of its proper divisors (18513306158168).

21155141315032 is a wasteful number, since it uses less digits than its factorization.

21155141315032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170500506 (or 170500502 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 21155141315032 in words is "twenty-one trillion, one hundred fifty-five billion, one hundred forty-one million, three hundred fifteen thousand, thirty-two".