61016612 has 12 divisors (see below), whose sum is σ = 108242316. Its totient is φ = 30090240.

The previous prime is 61016603. The next prime is 61016617. The reversal of 61016612 is 21661016.

61016612 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49224256 + 11792356 = 7016^2 + 3434^2 .

61016612 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (61016617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104189 + ... + 104772.

It is an arithmetic number, because the mean of its divisors is an integer number (9020193).

Almost surely, 2^61016612 is an apocalyptic number.

It is an amenable number.

61016612 is a deficient number, since it is larger than the sum of its proper divisors (47225704).

61016612 is a wasteful number, since it uses less digits than its factorization.

61016612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209038 (or 209036 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 61016612 is about 7811.3130778378. The cubic root of 61016612 is about 393.6854489965.

Adding to 61016612 its reverse (21661016), we get a palindrome (82677628).

The spelling of 61016612 in words is "sixty-one million, sixteen thousand, six hundred twelve".