61005100600503 has 16 divisors (see below), whose sum is σ = 90382974040800. Its totient is φ = 40667795815680.

The previous prime is 61005100600501. The next prime is 61005100600537. The reversal of 61005100600503 is 30500600150016.

It is a happy number.

61005100600503 is a `hidden beast` number, since 6 + 1 + 0 + 0 + 5 + 1 + 0 + 0 + 600 + 50 + 3 = 666.

It is not a de Polignac number, because 61005100600503 - 2¹ = 61005100600501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005100600501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62597818 + ... + 63564903.

It is an arithmetic number, because the mean of its divisors is an integer number (5648935877550).

Almost surely, 2^{61005100600503} is an apocalyptic number.

61005100600503 is a deficient number, since it is larger than the sum of its proper divisors (29377873440297).

61005100600503 is a wasteful number, since it uses less digits than its factorization.

61005100600503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126180639 (or 126180633 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 61005100600503 its reverse (30500600150016), we get a palindrome (91505700750519).

The spelling of 61005100600503 in words is "sixty-one trillion, five billion, one hundred million, six hundred thousand, five hundred three".