61451415416 has 32 divisors (see below), whose sum is σ = 116023034880. Its totient is φ = 30512076000.

The previous prime is 61451415407. The next prime is 61451415449.

61451415416 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61451415416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4717985 + ... + 4730991.

It is an arithmetic number, because the mean of its divisors is an integer number (3625719840).

Almost surely, 2^61451415416 is an apocalyptic number.

It is an amenable number.

61451415416 is a deficient number, since it is larger than the sum of its proper divisors (54571619464).

61451415416 is a wasteful number, since it uses less digits than its factorization.

61451415416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075 (or 17071 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The spelling of 61451415416 in words is "sixty-one billion, four hundred fifty-one million, four hundred fifteen thousand, four hundred sixteen".