61051105510051 has 4 divisors (see below), whose sum is σ = 61306549466400. Its totient is φ = 60795661553704.

The previous prime is 61051105510037. The next prime is 61051105510097. The reversal of 61051105510051 is 15001550115016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61051105510051 - 2²⁹ = 61050568639139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61051105509995 and 61051105510022.

It is not an unprimeable number, because it can be changed into a prime (61051105550051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127721977816 + ... + 127721978293.

It is an arithmetic number, because the mean of its divisors is an integer number (15326637366600).

Almost surely, 2^{61051105510051} is an apocalyptic number.

61051105510051 is a deficient number, since it is larger than the sum of its proper divisors (255443956349).

61051105510051 is a wasteful number, since it uses less digits than its factorization.

61051105510051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255443956348.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 61051105510051 its reverse (15001550115016), we get a palindrome (76052655625067).

The spelling of 61051105510051 in words is "sixty-one trillion, fifty-one billion, one hundred five million, five hundred ten thousand, fifty-one".