1346620266431 has 12 divisors (see below), whose sum is σ = 1480350568200. Its totient is φ = 1224050390640.

The previous prime is 1346620266391. The next prime is 1346620266437.

1346620266431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1346620266431 - 2¹⁴ = 1346620250047 is a prime.

It is a super-2 number, since 2×1346620266431² (a number of 25 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 (1346620266437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317465 + ... + 1671533.

It is an arithmetic number, because the mean of its divisors is an integer number (123362547350).

Almost surely, 2^{1346620266431} is an apocalyptic number.

1346620266431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1346620266431 is a deficient number, since it is larger than the sum of its proper divisors (133730301769).

1346620266431 is a wasteful number, since it uses less digits than its factorization.

1346620266431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362310 (or 1362299 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 1346620266431 in words is "one trillion, three hundred forty-six billion, six hundred twenty million, two hundred sixty-six thousand, four hundred thirty-one".