220261501144 has 32 divisors (see below), whose sum is σ = 418852922400. Its totient is φ = 108567728640.

The previous prime is 220261501127. The next prime is 220261501169. The reversal of 220261501144 is 441105162022.

It is a congruent number.

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, 7544944 + ... + 7574080.

It is an arithmetic number, because the mean of its divisors is an integer number (13089153825).

Almost surely, 2^220261501144 is an apocalyptic number.

It is an amenable number.

220261501144 is a deficient number, since it is larger than the sum of its proper divisors (198591421256).

220261501144 is a wasteful number, since it uses less digits than its factorization.

220261501144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42523 (or 42519 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 220261501144 its reverse (441105162022), we get a palindrome (661366663166).

The spelling of 220261501144 in words is "two hundred twenty billion, two hundred sixty-one million, five hundred one thousand, one hundred forty-four".