1610002978256 has 80 divisors (see below), whose sum is σ = 3195596250000. Its totient is φ = 785613717504.

The previous prime is 1610002978249. The next prime is 1610002978277. The reversal of 1610002978256 is 6528792000161.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13975022656 + 1596027955600 = 118216^2 + 1263340^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1610002978256.

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, 51506120 + ... + 51537368.

It is an arithmetic number, because the mean of its divisors is an integer number (39944953125).

Almost surely, 2^{1610002978256} is an apocalyptic number.

1610002978256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1610002978256 is a deficient number, since it is larger than the sum of its proper divisors (1585593271744).

1610002978256 is a wasteful number, since it uses less digits than its factorization.

1610002978256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31816 (or 31810 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 1610002978256 in words is "one trillion, six hundred ten billion, two million, nine hundred seventy-eight thousand, two hundred fifty-six".