61660620441222 has 16 divisors (see below), whose sum is σ = 134532262780992. Its totient is φ = 18685036497320.

The previous prime is 61660620441181. The next prime is 61660620441293. The reversal of 61660620441222 is 22214402606616.

It is a super-2 number, since 2×61660620441222² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467125912368 + ... + 467125912499.

It is an arithmetic number, because the mean of its divisors is an integer number (8408266423812).

Almost surely, 2^{61660620441222} is an apocalyptic number.

61660620441222 is an abundant number, since it is smaller than the sum of its proper divisors (72871642339770).

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

61660620441222 is a wasteful number, since it uses less digits than its factorization.

61660620441222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934251824883.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 61660620441222 in words is "sixty-one trillion, six hundred sixty billion, six hundred twenty million, four hundred forty-one thousand, two hundred twenty-two".