1220656464048 has 160 divisors (see below), whose sum is σ = 3783053869056. Its totient is φ = 331597626624.

The previous prime is 1220656464037. The next prime is 1220656464073. The reversal of 1220656464048 is 8404646560221.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1220656463988 and 1220656464006.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817665 + ... + 1763487.

Almost surely, 2^{1220656464048} 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 1220656464048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891526934528).

1220656464048 is an abundant number, since it is smaller than the sum of its proper divisors (2562397405008).

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

1220656464048 is a wasteful number, since it uses less digits than its factorization.

1220656464048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946031 (or 946025 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 1220656464048 in words is "one trillion, two hundred twenty billion, six hundred fifty-six million, four hundred sixty-four thousand, forty-eight".