61143555534116 has 48 divisors (see below), whose sum is σ = 116879958343680. Its totient is φ = 27756511380000.

The previous prime is 61143555534107. The next prime is 61143555534137.

It is a happy number.

61143555534116 is nontrivially palindromic in base 10.

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, 109516031 + ... + 110072921.

It is an arithmetic number, because the mean of its divisors is an integer number (2434999132160).

Almost surely, 2^{61143555534116} is an apocalyptic number.

It is an amenable number.

61143555534116 is a deficient number, since it is larger than the sum of its proper divisors (55736402809564).

61143555534116 is a wasteful number, since it uses less digits than its factorization.

61143555534116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560136 (or 560134 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 50.

The spelling of 61143555534116 in words is "sixty-one trillion, one hundred forty-three billion, five hundred fifty-five million, five hundred thirty-four thousand, one hundred sixteen".