61105014945 has 24 divisors (see below), whose sum is σ = 114062695656. Its totient is φ = 30082468608.

The previous prime is 61105014907. The next prime is 61105014989. The reversal of 61105014945 is 54941050116.

61105014945 is a `hidden beast` number, since 6 + 110 + 50 + 1 + 494 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 210569121 + 60894445824 = 14511^2 + 246768^2 .

It is not a de Polignac number, because 61105014945 - 2⁶ = 61105014881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52225924 + ... + 52227093.

It is an arithmetic number, because the mean of its divisors is an integer number (4752612319).

Almost surely, 2^61105014945 is an apocalyptic number.

61105014945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61105014945 is a deficient number, since it is larger than the sum of its proper divisors (52957680711).

61105014945 is a wasteful number, since it uses less digits than its factorization.

61105014945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104453041 (or 104453038 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 61105014945 in words is "sixty-one billion, one hundred five million, fourteen thousand, nine hundred forty-five".