20546400230 has 32 divisors (see below), whose sum is σ = 37675380960. Its totient is φ = 8065728000.

The previous prime is 20546400229. The next prime is 20546400257. The reversal of 20546400230 is 3200464502.

It is a super-2 number, since 2×20546400230² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20546400230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123230 + ... + 237230.

It is an arithmetic number, because the mean of its divisors is an integer number (1177355655).

Almost surely, 2^20546400230 is an apocalyptic number.

20546400230 is a deficient number, since it is larger than the sum of its proper divisors (17128980730).

20546400230 is a wasteful number, since it uses less digits than its factorization.

20546400230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114344.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20546400230 its reverse (3200464502), we get a palindrome (23746864732).

The spelling of 20546400230 in words is "twenty billion, five hundred forty-six million, four hundred thousand, two hundred thirty".