2012153245544 has 16 divisors (see below), whose sum is σ = 4063001746020. Its totient is φ = 928686113280.

The previous prime is 2012153245499. The next prime is 2012153245549. The reversal of 2012153245544 is 4455423512102.

It can be written as a sum of positive squares in 2 ways, for example, as 1974761288644 + 37391956900 = 1405262^2 + 193370^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2012153245498 and 2012153245507.

It is not an unprimeable number, because it can be changed into a prime (2012153245549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9673813577 + ... + 9673813784.

Almost surely, 2^{2012153245544} is an apocalyptic number.

It is an amenable number.

2012153245544 is an abundant number, since it is smaller than the sum of its proper divisors (2050848500476).

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

2012153245544 is a wasteful number, since it uses less digits than its factorization.

2012153245544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19347627380 (or 19347627376 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 2012153245544 its reverse (4455423512102), we get a palindrome (6467576757646).

The spelling of 2012153245544 in words is "two trillion, twelve billion, one hundred fifty-three million, two hundred forty-five thousand, five hundred forty-four".