61055111651 has 16 divisors (see below), whose sum is σ = 64918682400. Its totient is φ = 57257549568.

The previous prime is 61055111639. The next prime is 61055111681. The reversal of 61055111651 is 15611155016.

It is a cyclic number.

It is not a de Polignac number, because 61055111651 - 2¹⁴ = 61055095267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61055111681) 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 15 ways as a sum of consecutive naturals, for example, 2300111 + ... + 2326503.

It is an arithmetic number, because the mean of its divisors is an integer number (4057417650).

Almost surely, 2^61055111651 is an apocalyptic number.

61055111651 is a deficient number, since it is larger than the sum of its proper divisors (3863570749).

61055111651 is a wasteful number, since it uses less digits than its factorization.

61055111651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27638.

The product of its (nonzero) digits is 4500, while the sum is 32.

Adding to 61055111651 its reverse (15611155016), we get a palindrome (76666266667).

The spelling of 61055111651 in words is "sixty-one billion, fifty-five million, one hundred eleven thousand, six hundred fifty-one".