61110005455 has 4 divisors (see below), whose sum is σ = 73332006552. Its totient is φ = 48888004360.

The previous prime is 61110005447. The next prime is 61110005461. The reversal of 61110005455 is 55450001116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61110005455 - 2³ = 61110005447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111000541 + ... + 6111000550.

It is an arithmetic number, because the mean of its divisors is an integer number (18333001638).

Almost surely, 2^61110005455 is an apocalyptic number.

61110005455 is a deficient number, since it is larger than the sum of its proper divisors (12222001097).

61110005455 is a wasteful number, since it uses less digits than its factorization.

61110005455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222001096.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 61110005455 in words is "sixty-one billion, one hundred ten million, five thousand, four hundred fifty-five".