61111050506 has 16 divisors (see below), whose sum is σ = 100990002528. Its totient is φ = 27502722000.

The previous prime is 61111050493. The next prime is 61111050521. The reversal of 61111050506 is 60505011116.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13749140 + ... + 13753583.

It is an arithmetic number, because the mean of its divisors is an integer number (6311875158).

Almost surely, 2^61111050506 is an apocalyptic number.

61111050506 is a deficient number, since it is larger than the sum of its proper divisors (39878952022).

61111050506 is a wasteful number, since it uses less digits than its factorization.

61111050506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27502837.

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 61111050506 in words is "sixty-one billion, one hundred eleven million, fifty thousand, five hundred six".