61504040516 has 24 divisors (see below), whose sum is σ = 113658931680. Its totient is φ = 29040403392.

The previous prime is 61504040513. The next prime is 61504040527.

61504040516 is nontrivially palindromic in base 10.

61504040516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61504040513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268966 + ... + 1316541.

It is an arithmetic number, because the mean of its divisors is an integer number (4735788820).

Almost surely, 2^61504040516 is an apocalyptic number.

It is an amenable number.

61504040516 is a deficient number, since it is larger than the sum of its proper divisors (52154891164).

61504040516 is a wasteful number, since it uses less digits than its factorization.

61504040516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585843 (or 2585841 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

It can be divided in two parts, 615040 and 40516, that added together give a palindrome (655556).

The spelling of 61504040516 in words is "sixty-one billion, five hundred four million, forty thousand, five hundred sixteen".