61205417521342 has 32 divisors (see below), whose sum is σ = 99319286436480. Its totient is φ = 28177685752320.

The previous prime is 61205417521337. The next prime is 61205417521349. The reversal of 61205417521342 is 24312571450216.

It is a super-2 number, since 2×61205417521342² (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 (61205417521349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4439617 + ... + 11921452.

It is an arithmetic number, because the mean of its divisors is an integer number (3103727701140).

Almost surely, 2^{61205417521342} is an apocalyptic number.

61205417521342 is a deficient number, since it is larger than the sum of its proper divisors (38113868915138).

61205417521342 is a wasteful number, since it uses less digits than its factorization.

61205417521342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16363476.

The product of its (nonzero) digits is 403200, while the sum is 43.

Adding to 61205417521342 its reverse (24312571450216), we get a palindrome (85517988971558).

The spelling of 61205417521342 in words is "sixty-one trillion, two hundred five billion, four hundred seventeen million, five hundred twenty-one thousand, three hundred forty-two".