20004306437626 has 16 divisors (see below), whose sum is σ = 35090610629184. Its totient is φ = 8373895717824.

The previous prime is 20004306437611. The next prime is 20004306437719. The reversal of 20004306437626 is 62673460340002.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16614871855 + ... + 16614873058.

It is an arithmetic number, because the mean of its divisors is an integer number (2193163164324).

Almost surely, 2^{20004306437626} is an apocalyptic number.

20004306437626 is a deficient number, since it is larger than the sum of its proper divisors (15086304191558).

20004306437626 is a wasteful number, since it uses less digits than its factorization.

20004306437626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33229744965.

The product of its (nonzero) digits is 870912, while the sum is 43.

Adding to 20004306437626 its reverse (62673460340002), we get a palindrome (82677766777628).

The spelling of 20004306437626 in words is "twenty trillion, four billion, three hundred six million, four hundred thirty-seven thousand, six hundred twenty-six".