61656044286239 has 8 divisors (see below), whose sum is σ = 66398999896320. Its totient is φ = 56913114815136.

The previous prime is 61656044286191. The next prime is 61656044286269. The reversal of 61656044286239 is 93268244065616.

61656044286239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61656044286239 - 2¹⁶ = 61656044220703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61656044286269) 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 in 7 ways as a sum of consecutive naturals, for example, 1491584 + ... + 11204325.

It is an arithmetic number, because the mean of its divisors is an integer number (8299874987040).

Almost surely, 2^{61656044286239} is an apocalyptic number.

61656044286239 is a deficient number, since it is larger than the sum of its proper divisors (4742955610081).

61656044286239 is a wasteful number, since it uses less digits than its factorization.

61656044286239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13069489.

The product of its (nonzero) digits is 89579520, while the sum is 62.

The spelling of 61656044286239 in words is "sixty-one trillion, six hundred fifty-six billion, forty-four million, two hundred eighty-six thousand, two hundred thirty-nine".