61222354015650 has 96 divisors (see below), whose sum is σ = 152078353416000. Its totient is φ = 16299423129600.

The previous prime is 61222354015639. The next prime is 61222354015651. The reversal of 61222354015650 is 5651045322216.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61222354015651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 416833426 + ... + 416980274.

It is an arithmetic number, because the mean of its divisors is an integer number (1584149514750).

Almost surely, 2^{61222354015650} is an apocalyptic number.

61222354015650 is an abundant number, since it is smaller than the sum of its proper divisors (90855999400350).

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

61222354015650 is a wasteful number, since it uses less digits than its factorization.

61222354015650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151364 (or 151359 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

Adding to 61222354015650 its reverse (5651045322216), we get a palindrome (66873399337866).

The spelling of 61222354015650 in words is "sixty-one trillion, two hundred twenty-two billion, three hundred fifty-four million, fifteen thousand, six hundred fifty".