2155726617006 has 16 divisors (see below), whose sum is σ = 4311478096848. Its totient is φ = 718571395200.

The previous prime is 2155726617001. The next prime is 2155726617013. The reversal of 2155726617006 is 6007166275512.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155726617001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205686 + ... + 2086566.

It is an arithmetic number, because the mean of its divisors is an integer number (269467381053).

Almost surely, 2^{2155726617006} is an apocalyptic number.

2155726617006 is an abundant number, since it is smaller than the sum of its proper divisors (2155751479842).

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

2155726617006 is a wasteful number, since it uses less digits than its factorization.

2155726617006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071907.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 2155726617006 in words is "two trillion, one hundred fifty-five billion, seven hundred twenty-six million, six hundred seventeen thousand, six".