136165012500 has 144 divisors (see below), whose sum is σ = 433225896768. Its totient is φ = 33009600000.

The previous prime is 136165012499. The next prime is 136165012517. The reversal of 136165012500 is 5210561631.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247452 + ... + 577548.

It is an arithmetic number, because the mean of its divisors is an integer number (3008513172).

Almost surely, 2^136165012500 is an apocalyptic number.

136165012500 is a gapful number since it is divisible by the number (10) 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 136165012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216612948384).

136165012500 is an abundant number, since it is smaller than the sum of its proper divisors (297060884268).

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

136165012500 is a wasteful number, since it uses less digits than its factorization.

136165012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330140 (or 330118 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 136165012500 in words is "one hundred thirty-six billion, one hundred sixty-five million, twelve thousand, five hundred".