61955855110 has 16 divisors (see below), whose sum is σ = 111857465232. Its totient is φ = 24707469600.

The previous prime is 61955855107. The next prime is 61955855111. The reversal of 61955855110 is 1155855916.

It is a super-2 number, since 2×61955855110² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61955855111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9355581 + ... + 9362200.

It is an arithmetic number, because the mean of its divisors is an integer number (6991091577).

Almost surely, 2^61955855110 is an apocalyptic number.

61955855110 is a deficient number, since it is larger than the sum of its proper divisors (49901610122).

61955855110 is a wasteful number, since it uses less digits than its factorization.

61955855110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18718119.

The product of its (nonzero) digits is 270000, while the sum is 46.

The spelling of 61955855110 in words is "sixty-one billion, nine hundred fifty-five million, eight hundred fifty-five thousand, one hundred ten".