2164044456356 has 6 divisors (see below), whose sum is σ = 3787077798630. Its totient is φ = 1082022228176.

The previous prime is 2164044456347. The next prime is 2164044456389. The reversal of 2164044456356 is 6536544404612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1819045638400 + 344998817956 = 1348720^2 + 587366^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270505557041 + ... + 270505557048.

It is an arithmetic number, because the mean of its divisors is an integer number (631179633105).

Almost surely, 2^{2164044456356} is an apocalyptic number.

It is an amenable number.

2164044456356 is a deficient number, since it is larger than the sum of its proper divisors (1623033342274).

2164044456356 is a wasteful number, since it uses less digits than its factorization.

2164044456356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541011114093 (or 541011114091 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 50.

The spelling of 2164044456356 in words is "two trillion, one hundred sixty-four billion, forty-four million, four hundred fifty-six thousand, three hundred fifty-six".