61101005051 has 4 divisors (see below), whose sum is σ = 63757570512. Its totient is φ = 58444439592.

The previous prime is 61101005041. The next prime is 61101005057. The reversal of 61101005051 is 15050010116.

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 61101005051 - 2¹⁴ = 61100988667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61101005057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328282696 + ... + 1328282741.

It is an arithmetic number, because the mean of its divisors is an integer number (15939392628).

Almost surely, 2^61101005051 is an apocalyptic number.

61101005051 is a deficient number, since it is larger than the sum of its proper divisors (2656565461).

61101005051 is a wasteful number, since it uses less digits than its factorization.

61101005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656565460.

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

Adding to 61101005051 its reverse (15050010116), we get a palindrome (76151015167).

The spelling of 61101005051 in words is "sixty-one billion, one hundred one million, five thousand, fifty-one".