61134145453615 has 16 divisors (see below), whose sum is σ = 79004371971168. Its totient is φ = 45145074796416.

The previous prime is 61134145453607. The next prime is 61134145453631. The reversal of 61134145453615 is 51635454143116.

It is a cyclic number.

It is not a de Polignac number, because 61134145453615 - 2³ = 61134145453607 is a prime.

It is a Duffinian number.

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 in 15 ways as a sum of consecutive naturals, for example, 22650124 + ... + 25205086.

It is an arithmetic number, because the mean of its divisors is an integer number (4937773248198).

Almost surely, 2^{61134145453615} is an apocalyptic number.

61134145453615 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61134145453615 is a deficient number, since it is larger than the sum of its proper divisors (17870226517553).

61134145453615 is a wasteful number, since it uses less digits than its factorization.

61134145453615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923098.

The product of its digits is 2592000, while the sum is 49.

The spelling of 61134145453615 in words is "sixty-one trillion, one hundred thirty-four billion, one hundred forty-five million, four hundred fifty-three thousand, six hundred fifteen".