20144402556312 has 16 divisors (see below), whose sum is σ = 50361006390840. Its totient is φ = 6714800852096.

The previous prime is 20144402556283. The next prime is 20144402556371. The reversal of 20144402556312 is 21365520444102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419675053233 + ... + 419675053280.

Almost surely, 2^{20144402556312} is an apocalyptic number.

It is an amenable number.

20144402556312 is an abundant number, since it is smaller than the sum of its proper divisors (30216603834528).

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

20144402556312 is a wasteful number, since it uses less digits than its factorization.

20144402556312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839350106522 (or 839350106518 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 20144402556312 in words is "twenty trillion, one hundred forty-four billion, four hundred two million, five hundred fifty-six thousand, three hundred twelve".