61634454545111 has 16 divisors (see below), whose sum is σ = 74175710184960. Its totient is φ = 50029457142240.

The previous prime is 61634454545071. The next prime is 61634454545117. The reversal of 61634454545111 is 11154545443616.

61634454545111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61634454545111 - 2¹⁸ = 61634454282967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61634454545111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61634454545117) 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 15 ways as a sum of consecutive naturals, for example, 90277235 + ... + 90957396.

It is an arithmetic number, because the mean of its divisors is an integer number (4635981886560).

Almost surely, 2^{61634454545111} is an apocalyptic number.

61634454545111 is a deficient number, since it is larger than the sum of its proper divisors (12541255639849).

61634454545111 is a wasteful number, since it uses less digits than its factorization.

61634454545111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181237214.

The product of its digits is 3456000, while the sum is 50.

Adding to 61634454545111 its reverse (11154545443616), we get a palindrome (72788999988727).

The spelling of 61634454545111 in words is "sixty-one trillion, six hundred thirty-four billion, four hundred fifty-four million, five hundred forty-five thousand, one hundred eleven".