2144140064646 has 16 divisors (see below), whose sum is σ = 4288656662064. Its totient is φ = 714650599424.

The previous prime is 2144140064621. The next prime is 2144140064663. The reversal of 2144140064646 is 6464600414412.

It is a super-3 number, since 3×2144140064646³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2144140064598 and 2144140064607.

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, 15614811 + ... + 15751526.

It is an arithmetic number, because the mean of its divisors is an integer number (268041041379).

Almost surely, 2^{2144140064646} is an apocalyptic number.

2144140064646 is an abundant number, since it is smaller than the sum of its proper divisors (2144516597418).

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

2144140064646 is a wasteful number, since it uses less digits than its factorization.

2144140064646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31377735.

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 2144140064646 in words is "two trillion, one hundred forty-four billion, one hundred forty million, sixty-four thousand, six hundred forty-six".