2145660603012 has 18 divisors (see below), whose sum is σ = 5423753191038. Its totient is φ = 715220200992.

The previous prime is 2145660603007. The next prime is 2145660603017. The reversal of 2145660603012 is 2103060665412.

2145660603012 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 6 + 606 + 0 + 30 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2145660603007) and next prime (2145660603017).

It can be written as a sum of positive squares in only one way, i.e., 1864470087936 + 281190515076 = 1365456^2 + 530274^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 59601683417 = 2145660603012 / (2 + 1 + 4 + 5 + 6 + 6 + 0 + 6 + 0 + 3 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (2145660603017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29800841673 + ... + 29800841744.

Almost surely, 2^{2145660603012} is an apocalyptic number.

It is an amenable number.

2145660603012 is an abundant number, since it is smaller than the sum of its proper divisors (3278092588026).

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

2145660603012 is a wasteful number, since it uses less digits than its factorization.

2145660603012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59601683427 (or 59601683422 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 2145660603012 in words is "two trillion, one hundred forty-five billion, six hundred sixty million, six hundred three thousand, twelve".