61517666571134 has 4 divisors (see below), whose sum is σ = 92276499856704. Its totient is φ = 30758833285566.

The previous prime is 61517666571107. The next prime is 61517666571227. The reversal of 61517666571134 is 43117566671516.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15379416642782 + ... + 15379416642785.

It is an arithmetic number, because the mean of its divisors is an integer number (23069124964176).

Almost surely, 2^{61517666571134} is an apocalyptic number.

61517666571134 is a deficient number, since it is larger than the sum of its proper divisors (30758833285570).

61517666571134 is a wasteful number, since it uses less digits than its factorization.

61517666571134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30758833285569.

The product of its digits is 19051200, while the sum is 59.

The spelling of 61517666571134 in words is "sixty-one trillion, five hundred seventeen billion, six hundred sixty-six million, five hundred seventy-one thousand, one hundred thirty-four".