1220716383638 has 16 divisors (see below), whose sum is σ = 1854360960000. Its totient is φ = 602596965672.

The previous prime is 1220716383613. The next prime is 1220716383709. The reversal of 1220716383638 is 8363836170221.

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, 2602013 + ... + 3035111.

It is an arithmetic number, because the mean of its divisors is an integer number (115897560000).

Almost surely, 2^{1220716383638} is an apocalyptic number.

1220716383638 is a deficient number, since it is larger than the sum of its proper divisors (633644576362).

1220716383638 is a wasteful number, since it uses less digits than its factorization.

1220716383638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451019.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 1220716383638 in words is "one trillion, two hundred twenty billion, seven hundred sixteen million, three hundred eighty-three thousand, six hundred thirty-eight".