155302131136 has 56 divisors (see below), whose sum is σ = 314450583696. Its totient is φ = 76080414720.

The previous prime is 155302131121. The next prime is 155302131169. The reversal of 155302131136 is 631131203551.

It is a junction number, because it is equal to n+sod(n) for n = 155302131098 and 155302131107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925935 + ... + 1080721.

Almost surely, 2^155302131136 is an apocalyptic number.

155302131136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155302131136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157225291848).

155302131136 is an abundant number, since it is smaller than the sum of its proper divisors (159148452560).

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

155302131136 is a wasteful number, since it uses less digits than its factorization.

155302131136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155117 (or 155107 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 155302131136 its reverse (631131203551), we get a palindrome (786433334687).

The spelling of 155302131136 in words is "one hundred fifty-five billion, three hundred two million, one hundred thirty-one thousand, one hundred thirty-six".