20142526144 has 28 divisors (see below), whose sum is σ = 43044967504. Its totient is φ = 9296550144.

The previous prime is 20142526133. The next prime is 20142526147. The reversal of 20142526144 is 44162524102.

It is not an unprimeable number, because it can be changed into a prime (20142526147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12104052 + ... + 12105715.

It is an arithmetic number, because the mean of its divisors is an integer number (1537320268).

Almost surely, 2^20142526144 is an apocalyptic number.

It is an amenable number.

20142526144 is an abundant number, since it is smaller than the sum of its proper divisors (22902441360).

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

20142526144 is a wasteful number, since it uses less digits than its factorization.

20142526144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24209792 (or 24209782 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 20142526144 in words is "twenty billion, one hundred forty-two million, five hundred twenty-six thousand, one hundred forty-four".