61255055104 has 36 divisors (see below), whose sum is σ = 122306574544. Its totient is φ = 30618574848.

The previous prime is 61255055101. The next prime is 61255055117. The reversal of 61255055104 is 40155055216.

It is a self number, because there is not a number n which added to its sum of digits gives 61255055104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255055101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890224 + ... + 956560.

Almost surely, 2^61255055104 is an apocalyptic number.

61255055104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61255055104 is a deficient number, since it is larger than the sum of its proper divisors (61051519440).

61255055104 is an equidigital number, since it uses as much as digits as its factorization.

61255055104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69960 (or 69946 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 61255055104 in words is "sixty-one billion, two hundred fifty-five million, fifty-five thousand, one hundred four".