61016611 has 4 divisors (see below), whose sum is σ = 61084792. Its totient is φ = 60948432.

The previous prime is 61016603. The next prime is 61016617. The reversal of 61016611 is 11661016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61016611 - 2³ = 61016603 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32730 + ... + 34543.

It is an arithmetic number, because the mean of its divisors is an integer number (15271198).

Almost surely, 2^61016611 is an apocalyptic number.

61016611 is a deficient number, since it is larger than the sum of its proper divisors (68181).

61016611 is an equidigital number, since it uses as much as digits as its factorization.

61016611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68180.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 61016611 is about 7811.3130138281. The cubic root of 61016611 is about 393.6854468458.

Adding to 61016611 its reverse (11661016), we get a palindrome (72677627).

The spelling of 61016611 in words is "sixty-one million, sixteen thousand, six hundred eleven".