361440121055 has 32 divisors (see below), whose sum is σ = 478372320384. Its totient is φ = 260539047936.

The previous prime is 361440121051. The next prime is 361440121057. The reversal of 361440121055 is 550121044163.

It is a cyclic number.

It is not a de Polignac number, because 361440121055 - 2² = 361440121051 is a prime.

It is a super-2 number, since 2×361440121055² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361440121051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67622 + ... + 852908.

It is an arithmetic number, because the mean of its divisors is an integer number (14949135012).

Almost surely, 2^361440121055 is an apocalyptic number.

361440121055 is a deficient number, since it is larger than the sum of its proper divisors (116932199329).

361440121055 is a wasteful number, since it uses less digits than its factorization.

361440121055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785475.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 361440121055 in words is "three hundred sixty-one billion, four hundred forty million, one hundred twenty-one thousand, fifty-five".