61330824342221 has 16 divisors (see below), whose sum is σ = 70786451909376. Its totient is φ = 52051166785536.

The previous prime is 61330824342209. The next prime is 61330824342233. The reversal of 61330824342221 is 12224342803316.

It is an interprime number because it is at equal distance from previous prime (61330824342209) and next prime (61330824342233).

It is a cyclic number.

It is not a de Polignac number, because 61330824342221 - 2⁶ = 61330824342157 is a prime.

It is a super-2 number, since 2×61330824342221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61330824342241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101770286 + ... + 102371151.

It is an arithmetic number, because the mean of its divisors is an integer number (4424153244336).

Almost surely, 2^{61330824342221} is an apocalyptic number.

It is an amenable number.

61330824342221 is a deficient number, since it is larger than the sum of its proper divisors (9455627567155).

61330824342221 is a wasteful number, since it uses less digits than its factorization.

61330824342221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204141868.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 61330824342221 in words is "sixty-one trillion, three hundred thirty billion, eight hundred twenty-four million, three hundred forty-two thousand, two hundred twenty-one".