61140314145 has 16 divisors (see below), whose sum is σ = 98793064512. Its totient is φ = 32285313600.

The previous prime is 61140314143. The next prime is 61140314197. The reversal of 61140314145 is 54141304116.

It is not a de Polignac number, because 61140314145 - 2¹ = 61140314143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61140314141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20176807 + ... + 20179836.

It is an arithmetic number, because the mean of its divisors is an integer number (6174566532).

Almost surely, 2^61140314145 is an apocalyptic number.

It is an amenable number.

61140314145 is a deficient number, since it is larger than the sum of its proper divisors (37652750367).

61140314145 is a wasteful number, since it uses less digits than its factorization.

61140314145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40356752.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 61140314145 in words is "sixty-one billion, one hundred forty million, three hundred fourteen thousand, one hundred forty-five".