61527755067205 has 16 divisors (see below), whose sum is σ = 84382104211200. Its totient is φ = 42189869129472.

The previous prime is 61527755067199. The next prime is 61527755067211. The reversal of 61527755067205 is 50276055772516.

It is an interprime number because it is at equal distance from previous prime (61527755067199) and next prime (61527755067211).

It is a cyclic number.

It is not a de Polignac number, because 61527755067205 - 2¹⁷ = 61527754936133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61527755067205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9783105 + ... + 14790694.

It is an arithmetic number, because the mean of its divisors is an integer number (5273881513200).

Almost surely, 2^{61527755067205} is an apocalyptic number.

It is an amenable number.

61527755067205 is a deficient number, since it is larger than the sum of its proper divisors (22854349143995).

61527755067205 is a wasteful number, since it uses less digits than its factorization.

61527755067205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24645348.

The product of its (nonzero) digits is 30870000, while the sum is 58.

The spelling of 61527755067205 in words is "sixty-one trillion, five hundred twenty-seven billion, seven hundred fifty-five million, sixty-seven thousand, two hundred five".