12342656165400 has 144 divisors (see below), whose sum is σ = 45219004023960. Its totient is φ = 2992159065600.

The previous prime is 12342656165383. The next prime is 12342656165407. The reversal of 12342656165400 is 456165624321.

12342656165400 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 26 + 5 + 616 + 5 + 4 + 0 + 0 = 666.

It is a super-2 number, since 2×12342656165400² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342656165407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 311663437 + ... + 311703036.

Almost surely, 2^{12342656165400} is an apocalyptic number.

12342656165400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342656165400 is an abundant number, since it is smaller than the sum of its proper divisors (32876347858560).

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

12342656165400 is a wasteful number, since it uses less digits than its factorization.

12342656165400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623366506 (or 623366494 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 12342656165400 in words is "twelve trillion, three hundred forty-two billion, six hundred fifty-six million, one hundred sixty-five thousand, four hundred".