220784245504642 has 16 divisors (see below), whose sum is σ = 332025121153152. Its totient is φ = 110109553329040.

The previous prime is 220784245504621. The next prime is 220784245504703. The reversal of 220784245504642 is 246405542487022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85783258 + ... + 88319509.

It is an arithmetic number, because the mean of its divisors is an integer number (20751570072072).

Almost surely, 2^{220784245504642} is an apocalyptic number.

220784245504642 is a deficient number, since it is larger than the sum of its proper divisors (111240875648510).

220784245504642 is a wasteful number, since it uses less digits than its factorization.

220784245504642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174104393.

The product of its (nonzero) digits is 34406400, while the sum is 55.

The spelling of 220784245504642 in words is "two hundred twenty trillion, seven hundred eighty-four billion, two hundred forty-five million, five hundred four thousand, six hundred forty-two".