20582531142 has 16 divisors (see below), whose sum is σ = 43586536752. Its totient is φ = 6457264640.

The previous prime is 20582531141. The next prime is 20582531161. The reversal of 20582531142 is 24113528502.

It is a super-2 number, since 2×20582531142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20582531141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100894659 + ... + 100894862.

It is an arithmetic number, because the mean of its divisors is an integer number (2724158547).

Almost surely, 2^20582531142 is an apocalyptic number.

20582531142 is an abundant number, since it is smaller than the sum of its proper divisors (23004005610).

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

20582531142 is a wasteful number, since it uses less digits than its factorization.

20582531142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201789543.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 20582531142 in words is "twenty billion, five hundred eighty-two million, five hundred thirty-one thousand, one hundred forty-two".