55452340161340 has 12 divisors (see below), whose sum is σ = 116449914338856. Its totient is φ = 22180936064528.

The previous prime is 55452340161331. The next prime is 55452340161341. The reversal of 55452340161340 is 4316104325455.

It is a super-2 number, since 2×55452340161340² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55452340161341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386308504014 + ... + 1386308504053.

It is an arithmetic number, because the mean of its divisors is an integer number (9704159528238).

Almost surely, 2^{55452340161340} is an apocalyptic number.

It is an amenable number.

55452340161340 is an abundant number, since it is smaller than the sum of its proper divisors (60997574177516).

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

55452340161340 is a wasteful number, since it uses less digits than its factorization.

55452340161340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772617008076 (or 2772617008074 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 55452340161340 its reverse (4316104325455), we get a palindrome (59768444486795).

The spelling of 55452340161340 in words is "fifty-five trillion, four hundred fifty-two billion, three hundred forty million, one hundred sixty-one thousand, three hundred forty".