61560614475 has 18 divisors (see below), whose sum is σ = 110261900996. Its totient is φ = 32832327600.

The previous prime is 61560614399. The next prime is 61560614491. The reversal of 61560614475 is 57441606516.

61560614475 is a `hidden beast` number, since 6 + 1 + 560 + 6 + 14 + 4 + 75 = 666.

It is not a de Polignac number, because 61560614475 - 2¹⁰ = 61560613451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 61560614475.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 136801141 + ... + 136801590.

Almost surely, 2^61560614475 is an apocalyptic number.

61560614475 is a deficient number, since it is larger than the sum of its proper divisors (48701286521).

61560614475 is a wasteful number, since it uses less digits than its factorization.

61560614475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273602747 (or 273602739 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 61560614475 in words is "sixty-one billion, five hundred sixty million, six hundred fourteen thousand, four hundred seventy-five".