20532142684 has 6 divisors (see below), whose sum is σ = 35931249704. Its totient is φ = 10266071340.

The previous prime is 20532142681. The next prime is 20532142693. The reversal of 20532142684 is 48624123502.

It is a super-2 number, since 2×20532142684² (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 (20532142681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2566517832 + ... + 2566517839.

Almost surely, 2^20532142684 is an apocalyptic number.

It is an amenable number.

20532142684 is a deficient number, since it is larger than the sum of its proper divisors (15399107020).

20532142684 is a wasteful number, since it uses less digits than its factorization.

20532142684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133035675 (or 5133035673 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

It can be divided in two parts, 20532 and 142684, that added together give a square (163216 = 404²).

The spelling of 20532142684 in words is "twenty billion, five hundred thirty-two million, one hundred forty-two thousand, six hundred eighty-four".