223606556307640 has 128 divisors (see below), whose sum is σ = 573290818214400. Its totient is φ = 77745420587520.

The previous prime is 223606556307613. The next prime is 223606556307671. The reversal of 223606556307640 is 46703655606322.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83753802 + ... + 86382361.

It is an arithmetic number, because the mean of its divisors is an integer number (4478834517300).

Almost surely, 2^{223606556307640} is an apocalyptic number.

223606556307640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223606556307640 is an abundant number, since it is smaller than the sum of its proper divisors (349684261906760).

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

223606556307640 is a wasteful number, since it uses less digits than its factorization.

223606556307640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170136317 (or 170136313 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 55.

The spelling of 223606556307640 in words is "two hundred twenty-three trillion, six hundred six billion, five hundred fifty-six million, three hundred seven thousand, six hundred forty".