1617063386880 has 72 divisors (see below), whose sum is σ = 5164496204112. Its totient is φ = 431216902144.

The previous prime is 1617063386879. The next prime is 1617063386881. The reversal of 1617063386880 is 886833607161.

It is an interprime number because it is at equal distance from previous prime (1617063386879) and next prime (1617063386881).

It is a super-2 number, since 2×1617063386880² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1617063386880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617063386881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210551289 + ... + 210558968.

It is an arithmetic number, because the mean of its divisors is an integer number (71729113946).

Almost surely, 2^{1617063386880} is an apocalyptic number.

1617063386880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1617063386880 is an abundant number, since it is smaller than the sum of its proper divisors (3547432817232).

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

1617063386880 is an equidigital number, since it uses as much as digits as its factorization.

1617063386880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421110281 (or 421110267 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1617063386880 in words is "one trillion, six hundred seventeen billion, sixty-three million, three hundred eighty-six thousand, eight hundred eighty".