61545312022351 has 16 divisors (see below), whose sum is σ = 65201683274208. Its totient is φ = 57892956160000.

The previous prime is 61545312022339. The next prime is 61545312022417. The reversal of 61545312022351 is 15322021354516.

It is a cyclic number.

It is not a de Polignac number, because 61545312022351 - 2³⁷ = 61407873068879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61545312022301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228283791 + ... + 228553231.

It is an arithmetic number, because the mean of its divisors is an integer number (4075105204638).

Almost surely, 2^{61545312022351} is an apocalyptic number.

61545312022351 is a deficient number, since it is larger than the sum of its proper divisors (3656371251857).

61545312022351 is a wasteful number, since it uses less digits than its factorization.

61545312022351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276842.

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 61545312022351 its reverse (15322021354516), we get a palindrome (76867333376867).

The spelling of 61545312022351 in words is "sixty-one trillion, five hundred forty-five billion, three hundred twelve million, twenty-two thousand, three hundred fifty-one".