61110602057 has 4 divisors (see below), whose sum is σ = 61119565440. Its totient is φ = 61101638676.

The previous prime is 61110602053. The next prime is 61110602107. The reversal of 61110602057 is 75020601116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61110602057 - 2² = 61110602053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61110602051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4471457 + ... + 4485102.

It is an arithmetic number, because the mean of its divisors is an integer number (15279891360).

Almost surely, 2^61110602057 is an apocalyptic number.

It is an amenable number.

61110602057 is a deficient number, since it is larger than the sum of its proper divisors (8963383).

61110602057 is an equidigital number, since it uses as much as digits as its factorization.

61110602057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8963382.

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 61110602057 in words is "sixty-one billion, one hundred ten million, six hundred two thousand, fifty-seven".