2145315203216 has 20 divisors (see below), whose sum is σ = 4156585223424. Its totient is φ = 1072648048800.

The previous prime is 2145315203203. The next prime is 2145315203231. The reversal of 2145315203216 is 6123025135412.

It is a super-2 number, since 2×2145315203216² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1473221 + ... + 2541851.

Almost surely, 2^{2145315203216} is an apocalyptic number.

It is an amenable number.

2145315203216 is a deficient number, since it is larger than the sum of its proper divisors (2011270020208).

2145315203216 is a wasteful number, since it uses less digits than its factorization.

2145315203216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194110 (or 1194104 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 2145315203216 in words is "two trillion, one hundred forty-five billion, three hundred fifteen million, two hundred three thousand, two hundred sixteen".