2129298151680 has 324 divisors, whose sum is σ = 8569952042652. Its totient is φ = 486696591360.

The previous prime is 2129298151601. The next prime is 2129298151691. The reversal of 2129298151680 is 861518929212.

2129298151680 is a `hidden beast` number, since 2 + 1 + 29 + 29 + 8 + 1 + 516 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 426210511104 + 1703087640576 = 652848^2 + 1305024^2 .

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 35 ways as a sum of consecutive naturals, for example, 1321591 + ... + 2450550.

Almost surely, 2^{2129298151680} is an apocalyptic number.

2129298151680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129298151680 is an abundant number, since it is smaller than the sum of its proper divisors (6440653890972).

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

2129298151680 is a wasteful number, since it uses less digits than its factorization.

2129298151680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772182 (or 3772158 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The spelling of 2129298151680 in words is "two trillion, one hundred twenty-nine billion, two hundred ninety-eight million, one hundred fifty-one thousand, six hundred eighty".