220603403378 has 6 divisors (see below), whose sum is σ = 330906101421. Its totient is φ = 110301369572.

The previous prime is 220603403369. The next prime is 220603403387. The reversal of 220603403378 is 873304306022.

It is an interprime number because it is at equal distance from previous prime (220603403369) and next prime (220603403387).

It can be written as a sum of positive squares in 2 ways, for example, as 111925709809 + 108677693569 = 334553^2 + 329663^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332117.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 498176 + ... + 830292.

Almost surely, 2^220603403378 is an apocalyptic number.

220603403378 is a deficient number, since it is larger than the sum of its proper divisors (110302698043).

220603403378 is an frugal number, since it uses more digits than its factorization.

220603403378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664236 (or 332119 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 220603403378 in words is "two hundred twenty billion, six hundred three million, four hundred three thousand, three hundred seventy-eight".