20144348183790 has 160 divisors (see below), whose sum is σ = 57672554338080. Its totient is φ = 5027590895616.

The previous prime is 20144348183761. The next prime is 20144348183851. The reversal of 20144348183790 is 9738184344102.

20144348183790 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 43 + 481 + 8 + 37 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1621527 + ... + 6551186.

It is an arithmetic number, because the mean of its divisors is an integer number (360453464613).

Almost surely, 2^{20144348183790} is an apocalyptic number.

20144348183790 is an abundant number, since it is smaller than the sum of its proper divisors (37528206154290).

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

20144348183790 is a wasteful number, since it uses less digits than its factorization.

20144348183790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172928 (or 8172919 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 20144348183790 in words is "twenty trillion, one hundred forty-four billion, three hundred forty-eight million, one hundred eighty-three thousand, seven hundred ninety".