215104143511145 has 32 divisors (see below), whose sum is σ = 308024459424000. Its totient is φ = 141082807815936.

The previous prime is 215104143511097. The next prime is 215104143511241. The reversal of 215104143511145 is 541115341401512.

It is a de Polignac number, because none of the positive numbers 2^k-215104143511145 is a prime.

It is a super-2 number, since 2×215104143511145² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215104143511099 and 215104143511108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990196370 + ... + 990413579.

It is an arithmetic number, because the mean of its divisors is an integer number (9625764357000).

Almost surely, 2^{215104143511145} is an apocalyptic number.

It is an amenable number.

215104143511145 is a deficient number, since it is larger than the sum of its proper divisors (92920315912855).

215104143511145 is a wasteful number, since it uses less digits than its factorization.

215104143511145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980610097.

The product of its (nonzero) digits is 48000, while the sum is 38.

Adding to 215104143511145 its reverse (541115341401512), we get a palindrome (756219484912657).

The spelling of 215104143511145 in words is "two hundred fifteen trillion, one hundred four billion, one hundred forty-three million, five hundred eleven thousand, one hundred forty-five".