61116445 has 64 divisors (see below), whose sum is σ = 91445760. Its totient is φ = 38707200.

The previous prime is 61116431. The next prime is 61116457. The reversal of 61116445 is 54461116.

61116445 = 163² + 164² + ... + 572².

It is not a de Polignac number, because 61116445 - 2⁷ = 61116317 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 860760 + ... + 860830.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^61116445 is an apocalyptic number.

61116445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61116445 is a deficient number, since it is larger than the sum of its proper divisors (30329315).

61116445 is a wasteful number, since it uses less digits than its factorization.

61116445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 2880, while the sum is 28.

The square root of 61116445 is about 7817.7007489415. The cubic root of 61116445 is about 393.9000429263.

The spelling of 61116445 in words is "sixty-one million, one hundred sixteen thousand, four hundred forty-five".