61516318 has 16 divisors (see below), whose sum is σ = 95944464. Its totient is φ = 29557440.

The previous prime is 61516303. The next prime is 61516321. The reversal of 61516318 is 81361516.

It is a self number, because there is not a number n which added to its sum of digits gives 61516318.

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, 105 + ... + 11092.

It is an arithmetic number, because the mean of its divisors is an integer number (5996529).

Almost surely, 2^61516318 is an apocalyptic number.

61516318 is a deficient number, since it is larger than the sum of its proper divisors (34428146).

61516318 is a wasteful number, since it uses less digits than its factorization.

61516318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307.

The product of its digits is 4320, while the sum is 31.

The square root of 61516318 is about 7843.2338993555. The cubic root of 61516318 is about 394.7572465591.

The spelling of 61516318 in words is "sixty-one million, five hundred sixteen thousand, three hundred eighteen".