1351212653466 has 96 divisors (see below), whose sum is σ = 3220625116800. Its totient is φ = 406886198400.

The previous prime is 1351212653381. The next prime is 1351212653467. The reversal of 1351212653466 is 6643562121531.

It is a happy number.

1351212653466 is a `hidden beast` number, since 1 + 3 + 5 + 12 + 126 + 53 + 466 = 666.

It is not an unprimeable number, because it can be changed into a prime (1351212653467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2602681 + ... + 3078371.

It is an arithmetic number, because the mean of its divisors is an integer number (33548178300).

Almost surely, 2^{1351212653466} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351212653466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610312558400).

1351212653466 is an abundant number, since it is smaller than the sum of its proper divisors (1869412463334).

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

1351212653466 is a wasteful number, since it uses less digits than its factorization.

1351212653466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475972 (or 475969 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

Adding to 1351212653466 its reverse (6643562121531), we get a palindrome (7994774774997).

The spelling of 1351212653466 in words is "one trillion, three hundred fifty-one billion, two hundred twelve million, six hundred fifty-three thousand, four hundred sixty-six".