2151703645998 has 64 divisors (see below), whose sum is σ = 4423703328000. Its totient is φ = 697469439744.

The previous prime is 2151703645943. The next prime is 2151703646011. The reversal of 2151703645998 is 8995463071512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23762373 + ... + 23852751.

It is an arithmetic number, because the mean of its divisors is an integer number (69120364500).

It is a 1-persistent number, because it is pandigital, but 2⋅2151703645998 = 4303407291996 is not.

Almost surely, 2^{2151703645998} is an apocalyptic number.

2151703645998 is an abundant number, since it is smaller than the sum of its proper divisors (2271999682002).

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

2151703645998 is a wasteful number, since it uses less digits than its factorization.

2151703645998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91169.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 2151703645998 in words is "two trillion, one hundred fifty-one billion, seven hundred three million, six hundred forty-five thousand, nine hundred ninety-eight".