220611127428 has 36 divisors (see below), whose sum is σ = 557973095680. Its totient is φ = 73495215216.

The previous prime is 220611127423. The next prime is 220611127433. The reversal of 220611127428 is 824721116022.

220611127428 is a `hidden beast` number, since 2 + 2 + 0 + 611 + 12 + 7 + 4 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (220611127423) and next prime (220611127433).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 220611127392 and 220611127401.

It is not an unprimeable number, because it can be changed into a prime (220611127423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1678600 + ... + 1805247.

Almost surely, 2^220611127428 is an apocalyptic number.

It is an amenable number.

220611127428 is an abundant number, since it is smaller than the sum of its proper divisors (337361968252).

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

220611127428 is a wasteful number, since it uses less digits than its factorization.

220611127428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485616 (or 3485611 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 220611127428 in words is "two hundred twenty billion, six hundred eleven million, one hundred twenty-seven thousand, four hundred twenty-eight".