2646144536512 has 56 divisors (see below), whose sum is σ = 5453652501360. Its totient is φ = 1272359424000.

The previous prime is 2646144536479. The next prime is 2646144536531. The reversal of 2646144536512 is 2156354416462.

It is a super-2 number, since 2×2646144536512² (a number of 26 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 7 ways as a sum of consecutive naturals, for example, 2374233 + ... + 3305944.

It is an arithmetic number, because the mean of its divisors is an integer number (97386651810).

Almost surely, 2^{2646144536512} is an apocalyptic number.

It is an amenable number.

2646144536512 is an abundant number, since it is smaller than the sum of its proper divisors (2807507964848).

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

2646144536512 is a wasteful number, since it uses less digits than its factorization.

2646144536512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680469 (or 5680459 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

It can be divided in two parts, 2646144 and 536512, that added together give a square (3182656 = 1784²).

The spelling of 2646144536512 in words is "two trillion, six hundred forty-six billion, one hundred forty-four million, five hundred thirty-six thousand, five hundred twelve".