136664144040 has 32 divisors (see below), whose sum is σ = 409992432480. Its totient is φ = 36443771712.

The previous prime is 136664144033. The next prime is 136664144069. The reversal of 136664144040 is 40441466631.

It is a self number, because there is not a number n which added to its sum of digits gives 136664144040.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569433814 + ... + 569434053.

It is an arithmetic number, because the mean of its divisors is an integer number (12812263515).

Almost surely, 2^136664144040 is an apocalyptic number.

136664144040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136664144040 is an abundant number, since it is smaller than the sum of its proper divisors (273328288440).

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

136664144040 is a wasteful number, since it uses less digits than its factorization.

136664144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138867881 (or 1138867877 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 136664144040 in words is "one hundred thirty-six billion, six hundred sixty-four million, one hundred forty-four thousand, forty".