2155585251094 has 16 divisors (see below), whose sum is σ = 3535039763856. Its totient is φ = 977667465600.

The previous prime is 2155585251091. The next prime is 2155585251097. The reversal of 2155585251094 is 4901525855512.

It is an interprime number because it is at equal distance from previous prime (2155585251091) and next prime (2155585251097).

It is a super-3 number, since 3×2155585251094³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155585251091) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 107190327 + ... + 107210434.

It is an arithmetic number, because the mean of its divisors is an integer number (220939985241).

Almost surely, 2^{2155585251094} is an apocalyptic number.

2155585251094 is a deficient number, since it is larger than the sum of its proper divisors (1379454512762).

2155585251094 is a wasteful number, since it uses less digits than its factorization.

2155585251094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214401231.

The product of its (nonzero) digits is 3600000, while the sum is 52.

The spelling of 2155585251094 in words is "two trillion, one hundred fifty-five billion, five hundred eighty-five million, two hundred fifty-one thousand, ninety-four".