1220660077716 has 48 divisors (see below), whose sum is σ = 3302268816000. Its totient is φ = 389195966016.

The previous prime is 1220660077691. The next prime is 1220660077723. The reversal of 1220660077716 is 6177700660221.

1220660077716 is a `hidden beast` number, since 1 + 2 + 20 + 6 + 600 + 7 + 7 + 7 + 16 = 666.

It is a super-2 number, since 2×1220660077716² (a number of 25 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 15 ways as a sum of consecutive naturals, for example, 245702041 + ... + 245707008.

It is an arithmetic number, because the mean of its divisors is an integer number (68797267000).

Almost surely, 2^{1220660077716} is an apocalyptic number.

It is an amenable number.

1220660077716 is an abundant number, since it is smaller than the sum of its proper divisors (2081608738284).

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

1220660077716 is a wasteful number, since it uses less digits than its factorization.

1220660077716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491409085 (or 491409077 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 1220660077716 in words is "one trillion, two hundred twenty billion, six hundred sixty million, seventy-seven thousand, seven hundred sixteen".