20324756142 has 16 divisors (see below), whose sum is σ = 45166124880. Its totient is φ = 6774918696.

The previous prime is 20324756131. The next prime is 20324756191. The reversal of 20324756142 is 24165742302.

20324756142 is a `hidden beast` number, since 2 + 0 + 32 + 4 + 7 + 5 + 614 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20324756097 and 20324756106.

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, 188192133 + ... + 188192240.

It is an arithmetic number, because the mean of its divisors is an integer number (2822882805).

Almost surely, 2^20324756142 is an apocalyptic number.

20324756142 is an abundant number, since it is smaller than the sum of its proper divisors (24841368738).

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

20324756142 is a wasteful number, since it uses less digits than its factorization.

20324756142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376384384 (or 376384378 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 20324756142 in words is "twenty billion, three hundred twenty-four million, seven hundred fifty-six thousand, one hundred forty-two".