21530541134190 has 32 divisors (see below), whose sum is σ = 56370871334016. Its totient is φ = 5219525123360.

The previous prime is 21530541134189. The next prime is 21530541134243. The reversal of 21530541134190 is 9143114503512.

It is a super-2 number, since 2×21530541134190² (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 15 ways as a sum of consecutive naturals, for example, 32622031692 + ... + 32622032351.

It is an arithmetic number, because the mean of its divisors is an integer number (1761589729188).

Almost surely, 2^{21530541134190} is an apocalyptic number.

21530541134190 is an abundant number, since it is smaller than the sum of its proper divisors (34840330199826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21530541134190 is a wasteful number, since it uses less digits than its factorization.

21530541134190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65244064064.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 21530541134190 in words is "twenty-one trillion, five hundred thirty billion, five hundred forty-one million, one hundred thirty-four thousand, one hundred ninety".