136666911470 has 32 divisors (see below), whose sum is σ = 256931330400. Its totient is φ = 52287762816.

The previous prime is 136666911427. The next prime is 136666911473. The reversal of 136666911470 is 74119666631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136666911473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3108425 + ... + 3152084.

It is an arithmetic number, because the mean of its divisors is an integer number (8029104075).

Almost surely, 2^136666911470 is an apocalyptic number.

136666911470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136666911470 is a deficient number, since it is larger than the sum of its proper divisors (120264418930).

136666911470 is a wasteful number, since it uses less digits than its factorization.

136666911470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260612.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 136666911470 in words is "one hundred thirty-six billion, six hundred sixty-six million, nine hundred eleven thousand, four hundred seventy".