19800103143960 has 256 divisors, whose sum is σ = 67080104985600. Its totient is φ = 5194298658816.

The previous prime is 19800103143943. The next prime is 19800103143967. The reversal of 19800103143960 is 6934130100891.

It is a super-2 number, since 2×19800103143960² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19800103143967) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16929039 + ... + 18060801.

It is an arithmetic number, because the mean of its divisors is an integer number (262031660100).

Almost surely, 2^{19800103143960} is an apocalyptic number.

19800103143960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19800103143960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33540052492800).

19800103143960 is an abundant number, since it is smaller than the sum of its proper divisors (47280001841640).

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

19800103143960 is a wasteful number, since it uses less digits than its factorization.

19800103143960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132047 (or 1132037 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 19800103143960 in words is "nineteen trillion, eight hundred billion, one hundred three million, one hundred forty-three thousand, nine hundred sixty".