61422320205 has 24 divisors (see below), whose sum is σ = 112068796320. Its totient is φ = 31034435040.

The previous prime is 61422320173. The next prime is 61422320207. The reversal of 61422320205 is 50202322416.

It is a happy number.

61422320205 is a `hidden beast` number, since 6 + 1 + 422 + 32 + 0 + 205 = 666.

61422320205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61422320205 - 2⁵ = 61422320173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61422320207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35918631 + ... + 35920340.

It is an arithmetic number, because the mean of its divisors is an integer number (4669533180).

Almost surely, 2^61422320205 is an apocalyptic number.

It is an amenable number.

61422320205 is a deficient number, since it is larger than the sum of its proper divisors (50646476115).

61422320205 is a wasteful number, since it uses less digits than its factorization.

61422320205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71839001 (or 71838998 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 61422320205 in words is "sixty-one billion, four hundred twenty-two million, three hundred twenty thousand, two hundred five".