1615225066256 has 10 divisors (see below), whose sum is σ = 3129498565902. Its totient is φ = 807612533120.

The previous prime is 1615225066253. The next prime is 1615225066271. The reversal of 1615225066256 is 6526605225161.

It can be written as a sum of positive squares in only one way, i.e., 1320853712656 + 294371353600 = 1149284^2 + 542560^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1615225066256.

It is not an unprimeable number, because it can be changed into a prime (1615225066253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50475783305 + ... + 50475783336.

Almost surely, 2^{1615225066256} is an apocalyptic number.

1615225066256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1615225066256 is a deficient number, since it is larger than the sum of its proper divisors (1514273499646).

1615225066256 is a wasteful number, since it uses less digits than its factorization.

1615225066256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100951566649 (or 100951566643 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 1615225066256 in words is "one trillion, six hundred fifteen billion, two hundred twenty-five million, sixty-six thousand, two hundred fifty-six".