20363233146 has 16 divisors (see below), whose sum is σ = 40881322944. Its totient is φ = 6761934944.

The previous prime is 20363233067. The next prime is 20363233153. The reversal of 20363233146 is 64133236302.

It is a happy number.

It is a super-2 number, since 2×20363233146² (a number of 21 digits) contains 22 as substring.

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, 6450651 + ... + 6453806.

It is an arithmetic number, because the mean of its divisors is an integer number (2555082684).

Almost surely, 2^20363233146 is an apocalyptic number.

20363233146 is an abundant number, since it is smaller than the sum of its proper divisors (20518089798).

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

20363233146 is a wasteful number, since it uses less digits than its factorization.

20363233146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904725.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 20363233146 its reverse (64133236302), we get a palindrome (84496469448).

The spelling of 20363233146 in words is "twenty billion, three hundred sixty-three million, two hundred thirty-three thousand, one hundred forty-six".