61017512106012 has 96 divisors (see below), whose sum is σ = 177560813283840. Its totient is φ = 15843764843520.

The previous prime is 61017512105971. The next prime is 61017512106073. The reversal of 61017512106012 is 21060121571016.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7324113 + ... + 13254344.

It is an arithmetic number, because the mean of its divisors is an integer number (1849591805040).

Almost surely, 2^{61017512106012} is an apocalyptic number.

It is an amenable number.

61017512106012 is an abundant number, since it is smaller than the sum of its proper divisors (116543301177828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61017512106012 is a wasteful number, since it uses less digits than its factorization.

61017512106012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20581691 (or 20581689 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

Adding to 61017512106012 its reverse (21060121571016), we get a palindrome (82077633677028).

The spelling of 61017512106012 in words is "sixty-one trillion, seventeen billion, five hundred twelve million, one hundred six thousand, twelve".