1220994192616 has 96 divisors (see below), whose sum is σ = 2566693584000. Its totient is φ = 543963087360.

The previous prime is 1220994192577. The next prime is 1220994192637. The reversal of 1220994192616 is 6162914990221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19215025 + ... + 19278463.

It is an arithmetic number, because the mean of its divisors is an integer number (26736391500).

Almost surely, 2^{1220994192616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220994192616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283346792000).

1220994192616 is an abundant number, since it is smaller than the sum of its proper divisors (1345699391384).

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

1220994192616 is a wasteful number, since it uses less digits than its factorization.

1220994192616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63863 (or 63848 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 1220994192616 in words is "one trillion, two hundred twenty billion, nine hundred ninety-four million, one hundred ninety-two thousand, six hundred sixteen".