1999162942560 has 1152 divisors, whose sum is σ = 8589552491520. Its totient is φ = 413176578048.

The previous prime is 1999162942559. The next prime is 1999162942583. The reversal of 1999162942560 is 652492619991.

1999162942560 is a `hidden beast` number, since 1 + 9 + 9 + 9 + 1 + 6 + 29 + 42 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 375568059 + ... + 375573381.

It is an arithmetic number, because the mean of its divisors is an integer number (7456208760).

Almost surely, 2^{1999162942560} is an apocalyptic number.

1999162942560 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 1999162942560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4294776245760).

1999162942560 is an abundant number, since it is smaller than the sum of its proper divisors (6590389548960).

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

1999162942560 is a wasteful number, since it uses less digits than its factorization.

1999162942560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 1999162942560 in words is "one trillion, nine hundred ninety-nine billion, one hundred sixty-two million, nine hundred forty-two thousand, five hundred sixty".