20204623331562 has 16 divisors (see below), whose sum is σ = 40409827450272. Its totient is φ = 6734777646000.

The previous prime is 20204623331551. The next prime is 20204623331573. The reversal of 20204623331562 is 26513332640202.

It is an interprime number because it is at equal distance from previous prime (20204623331551) and next prime (20204623331573).

It is a self number, because there is not a number n which added to its sum of digits gives 20204623331562.

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, 23746564 + ... + 24582687.

It is an arithmetic number, because the mean of its divisors is an integer number (2525614215642).

Almost surely, 2^{20204623331562} is an apocalyptic number.

20204623331562 is an abundant number, since it is smaller than the sum of its proper divisors (20205204118710).

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

20204623331562 is a wasteful number, since it uses less digits than its factorization.

20204623331562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48398933.

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 20204623331562 its reverse (26513332640202), we get a palindrome (46717955971764).

The spelling of 20204623331562 in words is "twenty trillion, two hundred four billion, six hundred twenty-three million, three hundred thirty-one thousand, five hundred sixty-two".