61342061555 has 8 divisors (see below), whose sum is σ = 73625395392. Its totient is φ = 49063701568.

The previous prime is 61342061551. The next prime is 61342061579. The reversal of 61342061555 is 55516024316.

61342061555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61342061555 - 2² = 61342061551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61342061551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216274 + ... + 1265703.

It is an arithmetic number, because the mean of its divisors is an integer number (9203174424).

Almost surely, 2^61342061555 is an apocalyptic number.

61342061555 is a deficient number, since it is larger than the sum of its proper divisors (12283333837).

61342061555 is a wasteful number, since it uses less digits than its factorization.

61342061555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486925.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 61342061555 in words is "sixty-one billion, three hundred forty-two million, sixty-one thousand, five hundred fifty-five".