61055555506 has 32 divisors (see below), whose sum is σ = 101580391296. Its totient is φ = 27288576000.

The previous prime is 61055555501. The next prime is 61055555537. The reversal of 61055555506 is 60555555016.

It is not an unprimeable number, because it can be changed into a prime (61055555501) 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, 5672626 + ... + 5683378.

It is an arithmetic number, because the mean of its divisors is an integer number (3174387228).

Almost surely, 2^61055555506 is an apocalyptic number.

61055555506 is a deficient number, since it is larger than the sum of its proper divisors (40524835790).

61055555506 is a wasteful number, since it uses less digits than its factorization.

61055555506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 61055555506 in words is "sixty-one billion, fifty-five million, five hundred fifty-five thousand, five hundred six".