136465555481 has 8 divisors (see below), whose sum is σ = 137313222504. Its totient is φ = 135619338240.

The previous prime is 136465555451. The next prime is 136465555487. The reversal of 136465555481 is 184555564631.

It can be written as a sum of positive squares in 4 ways, for example, as 4769145481 + 131696410000 = 69059^2 + 362900^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 136465555481 - 2⁶ = 136465555417 is a prime.

It is a super-2 number, since 2×136465555481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136465555487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173300 + ... + 550421.

It is an arithmetic number, because the mean of its divisors is an integer number (17164152813).

Almost surely, 2^136465555481 is an apocalyptic number.

It is an amenable number.

136465555481 is a deficient number, since it is larger than the sum of its proper divisors (847667023).

136465555481 is an equidigital number, since it uses as much as digits as its factorization.

136465555481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724891.

The product of its digits is 8640000, while the sum is 53.

The spelling of 136465555481 in words is "one hundred thirty-six billion, four hundred sixty-five million, five hundred fifty-five thousand, four hundred eighty-one".