2145523616136 has 96 divisors (see below), whose sum is σ = 5975155105920. Its totient is φ = 695078035200.

The previous prime is 2145523616059. The next prime is 2145523616143. The reversal of 2145523616136 is 6316163255412.

It is a happy number.

2145523616136 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 5 + 23 + 6 + 1 + 613 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2145523616091 and 2145523616100.

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 23 ways as a sum of consecutive naturals, for example, 605380 + ... + 2158131.

It is an arithmetic number, because the mean of its divisors is an integer number (62241199020).

Almost surely, 2^{2145523616136} is an apocalyptic number.

It is an amenable number.

2145523616136 is an abundant number, since it is smaller than the sum of its proper divisors (3829631489784).

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

2145523616136 is a wasteful number, since it uses less digits than its factorization.

2145523616136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763827 (or 2763820 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 2145523616136 in words is "two trillion, one hundred forty-five billion, five hundred twenty-three million, six hundred sixteen thousand, one hundred thirty-six".