61364221023 has 16 divisors (see below), whose sum is σ = 95271676416. Its totient is φ = 34403659680.

The previous prime is 61364220947. The next prime is 61364221063. The reversal of 61364221023 is 32012246316.

It is not a de Polignac number, because 61364221023 - 2¹⁰ = 61364219999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61364221063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27565923 + ... + 27568148.

It is an arithmetic number, because the mean of its divisors is an integer number (5954479776).

Almost surely, 2^61364221023 is an apocalyptic number.

61364221023 is a deficient number, since it is larger than the sum of its proper divisors (33907455393).

61364221023 is a wasteful number, since it uses less digits than its factorization.

61364221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55134134.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 61364221023 its reverse (32012246316), we get a palindrome (93376467339).

The spelling of 61364221023 in words is "sixty-one billion, three hundred sixty-four million, two hundred twenty-one thousand, twenty-three".