1998629053716 has 24 divisors (see below), whose sum is σ = 4664287109664. Its totient is φ = 666092639200.

The previous prime is 1998629053697. The next prime is 1998629053723. The reversal of 1998629053716 is 6173509268991.

It is a super-2 number, since 2×1998629053716² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14559510 + ... + 14696141.

It is an arithmetic number, because the mean of its divisors is an integer number (194345296236).

Almost surely, 2^{1998629053716} is an apocalyptic number.

It is an amenable number.

1998629053716 is an abundant number, since it is smaller than the sum of its proper divisors (2665658055948).

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

1998629053716 is a wasteful number, since it uses less digits than its factorization.

1998629053716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29261351 (or 29261349 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 66.

The spelling of 1998629053716 in words is "one trillion, nine hundred ninety-eight billion, six hundred twenty-nine million, fifty-three thousand, seven hundred sixteen".