61010605563 has 16 divisors (see below), whose sum is σ = 82182967296. Its totient is φ = 40257514080.

The previous prime is 61010605561. The next prime is 61010605573. The reversal of 61010605563 is 36550601016.

It is not a de Polignac number, because 61010605563 - 2¹ = 61010605561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61010605561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29781 + ... + 350582.

It is an arithmetic number, because the mean of its divisors is an integer number (5136435456).

Almost surely, 2^61010605563 is an apocalyptic number.

61010605563 is a deficient number, since it is larger than the sum of its proper divisors (21172361733).

61010605563 is a wasteful number, since it uses less digits than its factorization.

61010605563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380914.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 61010605563 in words is "sixty-one billion, ten million, six hundred five thousand, five hundred sixty-three".