61161210477075 has 24 divisors (see below), whose sum is σ = 103471492831168. Its totient is φ = 31860723595680.

The previous prime is 61161210476959. The next prime is 61161210477091. The reversal of 61161210477075 is 57077401216116.

It is not a de Polignac number, because 61161210477075 - 2⁸ = 61161210476819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9482354989 + ... + 9482361438.

Almost surely, 2^{61161210477075} is an apocalyptic number.

61161210477075 is a deficient number, since it is larger than the sum of its proper divisors (42310282354093).

61161210477075 is a wasteful number, since it uses less digits than its factorization.

61161210477075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18964716483 (or 18964716478 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The spelling of 61161210477075 in words is "sixty-one trillion, one hundred sixty-one billion, two hundred ten million, four hundred seventy-seven thousand, seventy-five".