1223650630620 has 144 divisors (see below), whose sum is σ = 4287357835488. Its totient is φ = 279193006080.

The previous prime is 1223650630607. The next prime is 1223650630651. The reversal of 1223650630620 is 260360563221.

1223650630620 is a `hidden beast` number, since 1 + 2 + 23 + 6 + 5 + 0 + 6 + 3 + 0 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 18142969 + ... + 18210288.

It is an arithmetic number, because the mean of its divisors is an integer number (29773318302).

Almost surely, 2^{1223650630620} is an apocalyptic number.

1223650630620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223650630620 is an abundant number, since it is smaller than the sum of its proper divisors (3063707204868).

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

1223650630620 is a wasteful number, since it uses less digits than its factorization.

1223650630620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36353300 (or 36353295 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 1223650630620 in words is "one trillion, two hundred twenty-three billion, six hundred fifty million, six hundred thirty thousand, six hundred twenty".