136670344920 has 192 divisors, whose sum is σ = 447954624000. Its totient is φ = 36136813824.

The previous prime is 136670344903. The next prime is 136670344939. The reversal of 136670344920 is 29443076631.

136670344920 is a `hidden beast` number, since 1 + 3 + 66 + 70 + 34 + 492 + 0 = 666.

136670344920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 23646591 + ... + 23652369.

It is an arithmetic number, because the mean of its divisors is an integer number (2333097000).

Almost surely, 2^136670344920 is an apocalyptic number.

136670344920 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 136670344920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223977312000).

136670344920 is an abundant number, since it is smaller than the sum of its proper divisors (311284279080).

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

136670344920 is a wasteful number, since it uses less digits than its factorization.

136670344920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342 (or 6335 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 136670344920 in words is "one hundred thirty-six billion, six hundred seventy million, three hundred forty-four thousand, nine hundred twenty".