61055506101 has 4 divisors (see below), whose sum is σ = 81407341472. Its totient is φ = 40703670732.

The previous prime is 61055506073. The next prime is 61055506123. The reversal of 61055506101 is 10160555016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-61055506101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61055506151) 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 3 ways as a sum of consecutive naturals, for example, 10175917681 + ... + 10175917686.

It is an arithmetic number, because the mean of its divisors is an integer number (20351835368).

Almost surely, 2^61055506101 is an apocalyptic number.

It is an amenable number.

61055506101 is a deficient number, since it is larger than the sum of its proper divisors (20351835371).

61055506101 is a wasteful number, since it uses less digits than its factorization.

61055506101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20351835370.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 61055506101 in words is "sixty-one billion, fifty-five million, five hundred six thousand, one hundred one".