61100605611 has 8 divisors (see below), whose sum is σ = 90519415760. Its totient is φ = 40733737056.

The previous prime is 61100605571. The next prime is 61100605613. The reversal of 61100605611 is 11650600116.

It is not a de Polignac number, because 61100605611 - 2⁶ = 61100605547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2262985393 = 61100605611 / (6 + 1 + 1 + 0 + 0 + 6 + 0 + 5 + 6 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61100605613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131492670 + ... + 1131492723.

It is an arithmetic number, because the mean of its divisors is an integer number (11314926970).

Almost surely, 2^61100605611 is an apocalyptic number.

61100605611 is a deficient number, since it is larger than the sum of its proper divisors (29418810149).

61100605611 is a wasteful number, since it uses less digits than its factorization.

61100605611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262985402 (or 2262985396 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 61100605611 in words is "sixty-one billion, one hundred million, six hundred five thousand, six hundred eleven".