2145532154012 has 48 divisors (see below), whose sum is σ = 4284506688000. Its totient is φ = 931914590400.

The previous prime is 2145532154011. The next prime is 2145532154021. The reversal of 2145532154012 is 2104512355412.

It is a super-2 number, since 2×2145532154012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145532154011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7041512 + ... + 7339887.

It is an arithmetic number, because the mean of its divisors is an integer number (89260556000).

Almost surely, 2^{2145532154012} is an apocalyptic number.

It is an amenable number.

2145532154012 is a deficient number, since it is larger than the sum of its proper divisors (2138974533988).

2145532154012 is a wasteful number, since it uses less digits than its factorization.

2145532154012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14381586 (or 14381584 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 2145532154012 in words is "two trillion, one hundred forty-five billion, five hundred thirty-two million, one hundred fifty-four thousand, twelve".