2542651506065 has 8 divisors (see below), whose sum is σ = 3328561971648. Its totient is φ = 1849201095280.

The previous prime is 2542651506049. The next prime is 2542651506119. The reversal of 2542651506065 is 5606051562452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2542651506065 - 2⁴ = 2542651506049 is a prime.

It is a super-2 number, since 2×2542651506065² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 23115013637 + ... + 23115013746.

It is an arithmetic number, because the mean of its divisors is an integer number (416070246456).

Almost surely, 2^{2542651506065} is an apocalyptic number.

It is an amenable number.

2542651506065 is a deficient number, since it is larger than the sum of its proper divisors (785910465583).

2542651506065 is a wasteful number, since it uses less digits than its factorization.

2542651506065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46230027399.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 2542651506065 in words is "two trillion, five hundred forty-two billion, six hundred fifty-one million, five hundred six thousand, sixty-five".