61055101100 has 72 divisors (see below), whose sum is σ = 151853614080. Its totient is φ = 20872768320.

The previous prime is 61055101091. The next prime is 61055101109. The reversal of 61055101100 is 110155016.

It is an interprime number because it is at equal distance from previous prime (61055101091) and next prime (61055101109).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (61055101109) 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 23 ways as a sum of consecutive naturals, for example, 117221 + ... + 368579.

Almost surely, 2^61055101100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61055101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75926807040).

61055101100 is an abundant number, since it is smaller than the sum of its proper divisors (90798512980).

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

61055101100 is a wasteful number, since it uses less digits than its factorization.

61055101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251727 (or 251720 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 61055101100 its reverse (110155016), we get a palindrome (61165256116).

The spelling of 61055101100 in words is "sixty-one billion, fifty-five million, one hundred one thousand, one hundred".