61222440342 has 48 divisors (see below), whose sum is σ = 142505687232. Its totient is φ = 17483553360.

The previous prime is 61222440277. The next prime is 61222440353. The reversal of 61222440342 is 24304422216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562417 + ... + 662387.

It is an arithmetic number, because the mean of its divisors is an integer number (2968868484).

Almost surely, 2^61222440342 is an apocalyptic number.

61222440342 is an abundant number, since it is smaller than the sum of its proper divisors (81283246890).

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

61222440342 is a wasteful number, since it uses less digits than its factorization.

61222440342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102073 (or 102066 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 61222440342 its reverse (24304422216), we get a palindrome (85526862558).

The spelling of 61222440342 in words is "sixty-one billion, two hundred twenty-two million, four hundred forty thousand, three hundred forty-two".