20153223354 has 32 divisors (see below), whose sum is σ = 46284917760. Its totient is φ = 5785614000.

The previous prime is 20153223319. The next prime is 20153223361. The reversal of 20153223354 is 45332235102.

It is a super-2 number, since 2×20153223354² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8034322 + ... + 8036829.

It is an arithmetic number, because the mean of its divisors is an integer number (1446403680).

Almost surely, 2^20153223354 is an apocalyptic number.

20153223354 is an abundant number, since it is smaller than the sum of its proper divisors (26131694406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20153223354 is a wasteful number, since it uses less digits than its factorization.

20153223354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071186.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20153223354 its reverse (45332235102), we get a palindrome (65485458456).

The spelling of 20153223354 in words is "twenty billion, one hundred fifty-three million, two hundred twenty-three thousand, three hundred fifty-four".