1213663166430 has 128 divisors (see below), whose sum is σ = 3423652517376. Its totient is φ = 271459468800.

The previous prime is 1213663166407. The next prime is 1213663166447. The reversal of 1213663166430 is 346613663121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9075612 + ... + 9208368.

It is an arithmetic number, because the mean of its divisors is an integer number (26747285292).

Almost surely, 2^{1213663166430} is an apocalyptic number.

1213663166430 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 1213663166430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1711826258688).

1213663166430 is an abundant number, since it is smaller than the sum of its proper divisors (2209989350946).

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

1213663166430 is a wasteful number, since it uses less digits than its factorization.

1213663166430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134922.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 1213663166430 in words is "one trillion, two hundred thirteen billion, six hundred sixty-three million, one hundred sixty-six thousand, four hundred thirty".