61010015506 has 16 divisors (see below), whose sum is σ = 102532803840. Its totient is φ = 26982316080.

The previous prime is 61010015489. The next prime is 61010015509. The reversal of 61010015506 is 60551001016.

It is not an unprimeable number, because it can be changed into a prime (61010015509) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37474626 + ... + 37476253.

It is an arithmetic number, because the mean of its divisors is an integer number (6408300240).

Almost surely, 2^61010015506 is an apocalyptic number.

61010015506 is a deficient number, since it is larger than the sum of its proper divisors (41522788334).

61010015506 is a wasteful number, since it uses less digits than its factorization.

61010015506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74950929.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 61010015506 in words is "sixty-one billion, ten million, fifteen thousand, five hundred six".