2151235534305 has 256 divisors, whose sum is σ = 4289253212160. Its totient is φ = 911684966400.

The previous prime is 2151235534297. The next prime is 2151235534307. The reversal of 2151235534305 is 5034355321512.

It is not a de Polignac number, because 2151235534305 - 2³ = 2151235534297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2151235534307) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 528167749 + ... + 528171821.

It is an arithmetic number, because the mean of its divisors is an integer number (16754895360).

Almost surely, 2^{2151235534305} is an apocalyptic number.

It is an amenable number.

2151235534305 is a deficient number, since it is larger than the sum of its proper divisors (2138017677855).

2151235534305 is a wasteful number, since it uses less digits than its factorization.

2151235534305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 2151235534305 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-five million, five hundred thirty-four thousand, three hundred five".