13356946642 has 8 divisors (see below), whose sum is σ = 21576606156. Its totient is φ = 6164744592.

The previous prime is 13356946637. The next prime is 13356946649. The reversal of 13356946642 is 24664965331.

It can be written as a sum of positive squares in 2 ways, for example, as 11541419761 + 1815526881 = 107431^2 + 42609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13356946649) 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, 256864333 + ... + 256864384.

Almost surely, 2^13356946642 is an apocalyptic number.

13356946642 is a deficient number, since it is larger than the sum of its proper divisors (8219659514).

13356946642 is a wasteful number, since it uses less digits than its factorization.

13356946642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513728732.

The product of its digits is 2799360, while the sum is 49.

The spelling of 13356946642 in words is "thirteen billion, three hundred fifty-six million, nine hundred forty-six thousand, six hundred forty-two".