1216597710030 has 128 divisors (see below), whose sum is σ = 3182169369600. Its totient is φ = 296815647744.

The previous prime is 1216597709963. The next prime is 1216597710047. The reversal of 1216597710030 is 300177956121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1102426 + ... + 1910114.

It is an arithmetic number, because the mean of its divisors is an integer number (24860698200).

Almost surely, 2^{1216597710030} is an apocalyptic number.

1216597710030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1216597710030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591084684800).

1216597710030 is an abundant number, since it is smaller than the sum of its proper divisors (1965571659570).

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

1216597710030 is a wasteful number, since it uses less digits than its factorization.

1216597710030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807818.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 1216597710030 in words is "one trillion, two hundred sixteen billion, five hundred ninety-seven million, seven hundred ten thousand, thirty".