220023554451 has 8 divisors (see below), whose sum is σ = 303480764880. Its totient is φ = 141624356832.

The previous prime is 220023554449. The next prime is 220023554453. The reversal of 220023554451 is 154455320022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220023554449) and next prime (220023554453).

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

It is not a de Polignac number, because 220023554451 - 2¹ = 220023554449 is a prime.

It is a super-2 number, since 2×220023554451² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220023554453) 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, 1264503100 + ... + 1264503273.

It is an arithmetic number, because the mean of its divisors is an integer number (37935095610).

Almost surely, 2^220023554451 is an apocalyptic number.

220023554451 is a deficient number, since it is larger than the sum of its proper divisors (83457210429).

220023554451 is a wasteful number, since it uses less digits than its factorization.

220023554451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529006405.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 220023554451 its reverse (154455320022), we get a palindrome (374478874473).

The spelling of 220023554451 in words is "two hundred twenty billion, twenty-three million, five hundred fifty-four thousand, four hundred fifty-one".