220754668749 has 8 divisors (see below), whose sum is σ = 294341736192. Its totient is φ = 147168690240.

The previous prime is 220754668691. The next prime is 220754668859. The reversal of 220754668749 is 947866457022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-220754668749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220754668692 and 220754668701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220754663749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600357 + ... + 895509.

It is an arithmetic number, because the mean of its divisors is an integer number (36792717024).

Almost surely, 2^220754668749 is an apocalyptic number.

It is an amenable number.

220754668749 is a deficient number, since it is larger than the sum of its proper divisors (73587067443).

220754668749 is a wasteful number, since it uses less digits than its factorization.

220754668749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544467.

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 220754668749 in words is "two hundred twenty billion, seven hundred fifty-four million, six hundred sixty-eight thousand, seven hundred forty-nine".