61061111053 has 4 divisors (see below), whose sum is σ = 64274853760. Its totient is φ = 57847368348.

The previous prime is 61061111051. The next prime is 61061111093. The reversal of 61061111053 is 35011116016.

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 cyclic number.

It is not a de Polignac number, because 61061111053 - 2¹ = 61061111051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061111051) 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, 1606871325 + ... + 1606871362.

It is an arithmetic number, because the mean of its divisors is an integer number (16068713440).

Almost surely, 2^61061111053 is an apocalyptic number.

It is an amenable number.

61061111053 is a deficient number, since it is larger than the sum of its proper divisors (3213742707).

61061111053 is a wasteful number, since it uses less digits than its factorization.

61061111053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213742706.

The product of its (nonzero) digits is 540, while the sum is 25.

Adding to 61061111053 its reverse (35011116016), we get a palindrome (96072227069).

The spelling of 61061111053 in words is "sixty-one billion, sixty-one million, one hundred eleven thousand, fifty-three".