61060827555 has 48 divisors (see below), whose sum is σ = 130263107520. Its totient is φ = 25766325504.

The previous prime is 61060827551. The next prime is 61060827587. The reversal of 61060827555 is 55572806016.

61060827555 is a `hidden beast` number, since 6 + 10 + 6 + 0 + 82 + 7 + 555 = 666.

It is not a de Polignac number, because 61060827555 - 2² = 61060827551 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61060827555.

It is not an unprimeable number, because it can be changed into a prime (61060827551) 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 47 ways as a sum of consecutive naturals, for example, 7451440 + ... + 7459629.

It is an arithmetic number, because the mean of its divisors is an integer number (2713814740).

Almost surely, 2^61060827555 is an apocalyptic number.

61060827555 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61060827555 is an abundant number, since it is smaller than the sum of its proper divisors (69202279965).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61060827555 is a wasteful number, since it uses less digits than its factorization.

61060827555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911100 (or 14911097 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 61060827555 in words is "sixty-one billion, sixty million, eight hundred twenty-seven thousand, five hundred fifty-five".