20546304264 has 64 divisors (see below), whose sum is σ = 57088584000. Its totient is φ = 6846906240.

The previous prime is 20546304187. The next prime is 20546304269. The reversal of 20546304264 is 46240364502.

20546304264 is a `hidden beast` number, since 20 + 546 + 30 + 4 + 2 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20546304269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948547 + ... + 969965.

It is an arithmetic number, because the mean of its divisors is an integer number (892009125).

Almost surely, 2^20546304264 is an apocalyptic number.

20546304264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20546304264 is an abundant number, since it is smaller than the sum of its proper divisors (36542279736).

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

20546304264 is a wasteful number, since it uses less digits than its factorization.

20546304264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25875 (or 25865 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 20546304264 its reverse (46240364502), we get a palindrome (66786668766).

The spelling of 20546304264 in words is "twenty billion, five hundred forty-six million, three hundred four thousand, two hundred sixty-four".