2156046688444 has 48 divisors (see below), whose sum is σ = 4143574866816. Its totient is φ = 973497960000.

The previous prime is 2156046688429. The next prime is 2156046688469. The reversal of 2156046688444 is 4448866406512.

It is a super-2 number, since 2×2156046688444² (a number of 25 digits) contains 22 as substring.

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, 3857719 + ... + 4381105.

It is an arithmetic number, because the mean of its divisors is an integer number (86324476392).

Almost surely, 2^{2156046688444} is an apocalyptic number.

It is an amenable number.

2156046688444 is a deficient number, since it is larger than the sum of its proper divisors (1987528178372).

2156046688444 is a wasteful number, since it uses less digits than its factorization.

2156046688444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524026 (or 524024 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 58.

The spelling of 2156046688444 in words is "two trillion, one hundred fifty-six billion, forty-six million, six hundred eighty-eight thousand, four hundred forty-four".