2557770663120 has 160 divisors (see below), whose sum is σ = 8132522235264. Its totient is φ = 664613683200.

The previous prime is 2557770663103. The next prime is 2557770663137. The reversal of 2557770663120 is 213660777552.

It is an interprime number because it is at equal distance from previous prime (2557770663103) and next prime (2557770663137).

It is a congruent number.

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, 7819984 + ... + 8140496.

Almost surely, 2^{2557770663120} is an apocalyptic number.

2557770663120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2557770663120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4066261117632).

2557770663120 is an abundant number, since it is smaller than the sum of its proper divisors (5574751572144).

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

2557770663120 is a wasteful number, since it uses less digits than its factorization.

2557770663120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321381 (or 321375 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 2557770663120 in words is "two trillion, five hundred fifty-seven billion, seven hundred seventy million, six hundred sixty-three thousand, one hundred twenty".