61513622631516 has 96 divisors (see below), whose sum is σ = 156706595136000. Its totient is φ = 18625440395520.

The previous prime is 61513622631431. The next prime is 61513622631521.

61513622631516 is nontrivially palindromic in base 10.

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, 1482985665 + ... + 1483027143.

It is an arithmetic number, because the mean of its divisors is an integer number (1632360366000).

Almost surely, 2^{61513622631516} is an apocalyptic number.

61513622631516 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61513622631516 is an abundant number, since it is smaller than the sum of its proper divisors (95192972504484).

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

61513622631516 is a wasteful number, since it uses less digits than its factorization.

61513622631516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50299 (or 50297 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

It can be divided in two parts, 6151362 and 2631516, that added together give a palindrome (8782878).

The spelling of 61513622631516 in words is "sixty-one trillion, five hundred thirteen billion, six hundred twenty-two million, six hundred thirty-one thousand, five hundred sixteen".