61255755755118 has 32 divisors (see below), whose sum is σ = 136125240055200. Its totient is φ = 20418384495168.

The previous prime is 61255755755107. The next prime is 61255755755119. The reversal of 61255755755118 is 81155755755216.

61255755755118 is a `hidden beast` number, since 6 + 1 + 2 + 5 + 5 + 7 + 5 + 575 + 51 + 1 + 8 = 666.

It is a super-2 number, since 2×61255755755118² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255755755119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18018 + ... + 11068506.

It is an arithmetic number, because the mean of its divisors is an integer number (4253913751725).

Almost surely, 2^{61255755755118} is an apocalyptic number.

61255755755118 is an abundant number, since it is smaller than the sum of its proper divisors (74869484300082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61255755755118 is a wasteful number, since it uses less digits than its factorization.

61255755755118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11153153 (or 11153147 counting only the distinct ones).

The product of its digits is 73500000, while the sum is 63.

The spelling of 61255755755118 in words is "sixty-one trillion, two hundred fifty-five billion, seven hundred fifty-five million, seven hundred fifty-five thousand, one hundred eighteen".