2661517814534 has 8 divisors (see below), whose sum is σ = 3992293989720. Its totient is φ = 1330753151296.

The previous prime is 2661517814521. The next prime is 2661517814551. The reversal of 2661517814534 is 4354187151662.

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2274704 + ... + 3239955.

It is an arithmetic number, because the mean of its divisors is an integer number (499036748715).

Almost surely, 2^{2661517814534} is an apocalyptic number.

2661517814534 is a deficient number, since it is larger than the sum of its proper divisors (1330776175186).

2661517814534 is a wasteful number, since it uses less digits than its factorization.

2661517814534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755974.

The product of its digits is 4838400, while the sum is 53.

The spelling of 2661517814534 in words is "two trillion, six hundred sixty-one billion, five hundred seventeen million, eight hundred fourteen thousand, five hundred thirty-four".