135391631416 has 8 divisors (see below), whose sum is σ = 253859308920. Its totient is φ = 67695815704.

The previous prime is 135391631407. The next prime is 135391631461. The reversal of 135391631416 is 614136193531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8461976956 + ... + 8461976971.

It is an arithmetic number, because the mean of its divisors is an integer number (31732413615).

Almost surely, 2^135391631416 is an apocalyptic number.

It is an amenable number.

135391631416 is a deficient number, since it is larger than the sum of its proper divisors (118467677504).

135391631416 is a wasteful number, since it uses less digits than its factorization.

135391631416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16923953933 (or 16923953929 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The spelling of 135391631416 in words is "one hundred thirty-five billion, three hundred ninety-one million, six hundred thirty-one thousand, four hundred sixteen".