61543034516 has 48 divisors (see below), whose sum is σ = 112336224000. Its totient is φ = 29465009280.

The previous prime is 61543034489. The next prime is 61543034561.

61543034516 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 61543034516.

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, 23039861 + ... + 23042531.

It is an arithmetic number, because the mean of its divisors is an integer number (2340338000).

Almost surely, 2^61543034516 is an apocalyptic number.

It is an amenable number.

61543034516 is a deficient number, since it is larger than the sum of its proper divisors (50793189484).

61543034516 is a wasteful number, since it uses less digits than its factorization.

61543034516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4270 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

It can be divided in two parts, 615430 and 34516, that added together give a palindrome (649946).

The spelling of 61543034516 in words is "sixty-one billion, five hundred forty-three million, thirty-four thousand, five hundred sixteen".