2564204655246 has 16 divisors (see below), whose sum is σ = 5522902334544. Its totient is φ = 788986047744.

The previous prime is 2564204655239. The next prime is 2564204655263. The reversal of 2564204655246 is 6425564024652.

It is a congruent number.

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, 16437209251 + ... + 16437209406.

It is an arithmetic number, because the mean of its divisors is an integer number (345181395909).

Almost surely, 2^{2564204655246} is an apocalyptic number.

2564204655246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2564204655246 is an abundant number, since it is smaller than the sum of its proper divisors (2958697679298).

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

2564204655246 is a wasteful number, since it uses less digits than its factorization.

2564204655246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32874418675.

The product of its (nonzero) digits is 13824000, while the sum is 51.

Adding to 2564204655246 its reverse (6425564024652), we get a palindrome (8989768679898).

The spelling of 2564204655246 in words is "two trillion, five hundred sixty-four billion, two hundred four million, six hundred fifty-five thousand, two hundred forty-six".