61220346162 has 16 divisors (see below), whose sum is σ = 123816431520. Its totient is φ = 20177492192.

The previous prime is 61220346157. The next prime is 61220346169. The reversal of 61220346162 is 26164302216.

It is not an unprimeable number, because it can be changed into a prime (61220346169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57321888 + ... + 57322955.

It is an arithmetic number, because the mean of its divisors is an integer number (7738526970).

Almost surely, 2^61220346162 is an apocalyptic number.

61220346162 is an abundant number, since it is smaller than the sum of its proper divisors (62596085358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61220346162 is a wasteful number, since it uses less digits than its factorization.

61220346162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114644937.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 61220346162 its reverse (26164302216), we get a palindrome (87384648378).

The spelling of 61220346162 in words is "sixty-one billion, two hundred twenty million, three hundred forty-six thousand, one hundred sixty-two".