66455600120412 has 96 divisors (see below), whose sum is σ = 155679403489344. Its totient is φ = 22064032972800.

The previous prime is 66455600120401. The next prime is 66455600120423. The reversal of 66455600120412 is 21402100655466.

It is an interprime number because it is at equal distance from previous prime (66455600120401) and next prime (66455600120423).

It is a super-3 number, since 3×66455600120412³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10253908212 + ... + 10253914692.

It is an arithmetic number, because the mean of its divisors is an integer number (1621660453014).

Almost surely, 2^{66455600120412} is an apocalyptic number.

It is an amenable number.

66455600120412 is an abundant number, since it is smaller than the sum of its proper divisors (89223803368932).

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

66455600120412 is a wasteful number, since it uses less digits than its factorization.

66455600120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119 (or 10117 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

Adding to 66455600120412 its reverse (21402100655466), we get a palindrome (87857700775878).

The spelling of 66455600120412 in words is "sixty-six trillion, four hundred fifty-five billion, six hundred million, one hundred twenty thousand, four hundred twelve".