2540166530002 has 4 divisors (see below), whose sum is σ = 3810249795006. Its totient is φ = 1270083265000.

The previous prime is 2540166529991. The next prime is 2540166530009. The reversal of 2540166530002 is 2000356610452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2287659275001 + 252507255001 = 1512501^2 + 502501^2 .

It is a super-2 number, since 2×2540166530002² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2540166530002.

It is not an unprimeable number, because it can be changed into a prime (2540166530009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635041632499 + ... + 635041632502.

Almost surely, 2^{2540166530002} is an apocalyptic number.

2540166530002 is a deficient number, since it is larger than the sum of its proper divisors (1270083265004).

2540166530002 is a wasteful number, since it uses less digits than its factorization.

2540166530002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270083265003.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 2540166530002 in words is "two trillion, five hundred forty billion, one hundred sixty-six million, five hundred thirty thousand, two".