2655642278016 has 2560 divisors, whose sum is σ = 10947847680000. Its totient is φ = 632073093120.

The previous prime is 2655642277987. The next prime is 2655642278017. The reversal of 2655642278016 is 6108722465562.

2655642278016 is a `hidden beast` number, since 2 + 6 + 5 + 564 + 2 + 2 + 78 + 0 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2655642278017) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 24363690570 + ... + 24363690678.

It is an arithmetic number, because the mean of its divisors is an integer number (4276503000).

Almost surely, 2^{2655642278016} is an apocalyptic number.

2655642278016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655642278016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5473923840000).

2655642278016 is an abundant number, since it is smaller than the sum of its proper divisors (8292205401984).

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

2655642278016 is a wasteful number, since it uses less digits than its factorization.

2655642278016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 2655642278016 in words is "two trillion, six hundred fifty-five billion, six hundred forty-two million, two hundred seventy-eight thousand, sixteen".