135564137730 has 96 divisors (see below), whose sum is σ = 417738432384. Its totient is φ = 30986084736.

The previous prime is 135564137729. The next prime is 135564137743. The reversal of 135564137730 is 37731465531.

135564137730 is a `hidden beast` number, since 1 + 3 + 5 + 564 + 13 + 7 + 73 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3967827 + ... + 4001846.

It is an arithmetic number, because the mean of its divisors is an integer number (4351442004).

Almost surely, 2^135564137730 is an apocalyptic number.

135564137730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135564137730 is an abundant number, since it is smaller than the sum of its proper divisors (282174294654).

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

135564137730 is an equidigital number, since it uses as much as digits as its factorization.

135564137730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969702 (or 7969690 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 135564137730 in words is "one hundred thirty-five billion, five hundred sixty-four million, one hundred thirty-seven thousand, seven hundred thirty".