2155614540205 has 16 divisors (see below), whose sum is σ = 2970282144384. Its totient is φ = 1471130297280.

The previous prime is 2155614540127. The next prime is 2155614540227. The reversal of 2155614540205 is 5020454165512.

It is not a de Polignac number, because 2155614540205 - 2¹⁵ = 2155614507437 is a prime.

It is a super-2 number, since 2×2155614540205² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145938082 + ... + 145952851.

It is an arithmetic number, because the mean of its divisors is an integer number (185642634024).

Almost surely, 2^{2155614540205} is an apocalyptic number.

It is an amenable number.

2155614540205 is a deficient number, since it is larger than the sum of its proper divisors (814667604179).

2155614540205 is a wasteful number, since it uses less digits than its factorization.

2155614540205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291891156.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 2155614540205 in words is "two trillion, one hundred fifty-five billion, six hundred fourteen million, five hundred forty thousand, two hundred five".