61552655163 has 40 divisors (see below), whose sum is σ = 93072038400. Its totient is φ = 40534826112.

The previous prime is 61552655141. The next prime is 61552655173. The reversal of 61552655163 is 36155625516.

61552655163 is a `hidden beast` number, since 6 + 15 + 5 + 26 + 551 + 63 = 666.

It is not a de Polignac number, because 61552655163 - 2⁹ = 61552654651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61552655173) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8740998 + ... + 8748036.

It is an arithmetic number, because the mean of its divisors is an integer number (2326800960).

Almost surely, 2^61552655163 is an apocalyptic number.

61552655163 is a deficient number, since it is larger than the sum of its proper divisors (31519383237).

61552655163 is a wasteful number, since it uses less digits than its factorization.

61552655163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8353 (or 8344 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The spelling of 61552655163 in words is "sixty-one billion, five hundred fifty-two million, six hundred fifty-five thousand, one hundred sixty-three".