220249145194623 has 16 divisors (see below), whose sum is σ = 333883286429440. Its totient is φ = 143418048032952.

The previous prime is 220249145194567. The next prime is 220249145194667. The reversal of 220249145194623 is 326491541942022.

220249145194623 is a `hidden beast` number, since 2 + 2 + 0 + 2 + 4 + 9 + 1 + 4 + 5 + 1 + 9 + 4 + 623 = 666.

It is not a de Polignac number, because 220249145194623 - 2¹⁶ = 220249145129087 is a prime.

It is a super-2 number, since 2×220249145194623² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220249145194623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220249145194523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94853205211 + ... + 94853207532.

It is an arithmetic number, because the mean of its divisors is an integer number (20867705401840).

Almost surely, 2^{220249145194623} is an apocalyptic number.

220249145194623 is a deficient number, since it is larger than the sum of its proper divisors (113634141234817).

220249145194623 is a wasteful number, since it uses less digits than its factorization.

220249145194623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189706412795 (or 189706412789 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 220249145194623 in words is "two hundred twenty trillion, two hundred forty-nine billion, one hundred forty-five million, one hundred ninety-four thousand, six hundred twenty-three".