61110000055 has 16 divisors (see below), whose sum is σ = 79010938944. Its totient is φ = 45105661440.

The previous prime is 61110000053. The next prime is 61110000101. The reversal of 61110000055 is 55000001116.

It is not a de Polignac number, because 61110000055 - 2¹ = 61110000053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61109999987 and 61110000041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110000053) 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, 89586 + ... + 360895.

It is an arithmetic number, because the mean of its divisors is an integer number (4938183684).

Almost surely, 2^61110000055 is an apocalyptic number.

61110000055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61110000055 is a deficient number, since it is larger than the sum of its proper divisors (17900938889).

61110000055 is a wasteful number, since it uses less digits than its factorization.

61110000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452586.

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 61110000055 in words is "sixty-one billion, one hundred ten million, fifty-five", and thus it is an aban number.