220060161505 has 4 divisors (see below), whose sum is σ = 264072193812. Its totient is φ = 176048129200.

The previous prime is 220060161493. The next prime is 220060161527. The reversal of 220060161505 is 505161060022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130951344384 + 89108817121 = 361872^2 + 298511^2 .

It is not a de Polignac number, because 220060161505 - 2⁹ = 220060160993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22006016146 + ... + 22006016155.

It is an arithmetic number, because the mean of its divisors is an integer number (66018048453).

Almost surely, 2^220060161505 is an apocalyptic number.

It is an amenable number.

220060161505 is a deficient number, since it is larger than the sum of its proper divisors (44012032307).

220060161505 is an equidigital number, since it uses as much as digits as its factorization.

220060161505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44012032306.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 220060161505 in words is "two hundred twenty billion, sixty million, one hundred sixty-one thousand, five hundred five".