220451264653 has 4 divisors (see below), whose sum is σ = 220483188640. Its totient is φ = 220419340668.

The previous prime is 220451264647. The next prime is 220451264659. The reversal of 220451264653 is 356462154022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (220451264647) and next prime (220451264659).

It is a cyclic number.

It is not a de Polignac number, because 220451264653 - 2²¹ = 220449167501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220451264659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15951633 + ... + 15965446.

It is an arithmetic number, because the mean of its divisors is an integer number (55120797160).

Almost surely, 2^220451264653 is an apocalyptic number.

It is an amenable number.

220451264653 is a deficient number, since it is larger than the sum of its proper divisors (31923987).

220451264653 is an equidigital number, since it uses as much as digits as its factorization.

220451264653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31923986.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 220451264653 in words is "two hundred twenty billion, four hundred fifty-one million, two hundred sixty-four thousand, six hundred fifty-three".