61005110506012 has 24 divisors (see below), whose sum is σ = 109030793368896. Its totient is φ = 29853459818688.

The previous prime is 61005110505929. The next prime is 61005110506033. The reversal of 61005110506012 is 21060501150016.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 102632338 + ... + 103225030.

It is an arithmetic number, because the mean of its divisors is an integer number (4542949723704).

Almost surely, 2^{61005110506012} is an apocalyptic number.

It is an amenable number.

61005110506012 is a deficient number, since it is larger than the sum of its proper divisors (48025682862884).

61005110506012 is a wasteful number, since it uses less digits than its factorization.

61005110506012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140237 (or 1140235 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 61005110506012 its reverse (21060501150016), we get a palindrome (82065611656028).

The spelling of 61005110506012 in words is "sixty-one trillion, five billion, one hundred ten million, five hundred six thousand, twelve".