1223236346580 has 72 divisors (see below), whose sum is σ = 3725266525344. Its totient is φ = 324896760000.

The previous prime is 1223236346569. The next prime is 1223236346581. The reversal of 1223236346580 is 856436323221.

1223236346580 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 2 + 3 + 63 + 4 + 6 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223236346581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13492186 + ... + 13582545.

It is an arithmetic number, because the mean of its divisors is an integer number (51739812852).

Almost surely, 2^{1223236346580} is an apocalyptic number.

1223236346580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223236346580 is an abundant number, since it is smaller than the sum of its proper divisors (2502030178764).

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

1223236346580 is a wasteful number, since it uses less digits than its factorization.

1223236346580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27074997 (or 27074992 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 1223236346580 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-six million, three hundred forty-six thousand, five hundred eighty".