2145531146553 has 16 divisors (see below), whose sum is σ = 3223333180800. Its totient is φ = 1410208264080.

The previous prime is 2145531146519. The next prime is 2145531146569. The reversal of 2145531146553 is 3556411355412.

It is a happy number.

2145531146553 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 53 + 1 + 1 + 46 + 553 = 666.

It is not a de Polignac number, because 2145531146553 - 2²¹ = 2145529049401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145531146499 and 2145531146508.

It is not an unprimeable number, because it can be changed into a prime (2145531146513) 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, 559604538 + ... + 559608371.

It is an arithmetic number, because the mean of its divisors is an integer number (201458323800).

Almost surely, 2^{2145531146553} is an apocalyptic number.

It is an amenable number.

2145531146553 is a deficient number, since it is larger than the sum of its proper divisors (1077802034247).

2145531146553 is a wasteful number, since it uses less digits than its factorization.

2145531146553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119212989 (or 1119212983 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 2145531146553 in words is "two trillion, one hundred forty-five billion, five hundred thirty-one million, one hundred forty-six thousand, five hundred fifty-three".