64234151661340 has 12 divisors (see below), whose sum is σ = 134891718488856. Its totient is φ = 25693660664528.

The previous prime is 64234151661311. The next prime is 64234151661353. The reversal of 64234151661340 is 4316615143246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605853791514 + ... + 1605853791553.

It is an arithmetic number, because the mean of its divisors is an integer number (11240976540738).

Almost surely, 2^{64234151661340} is an apocalyptic number.

It is an amenable number.

64234151661340 is an abundant number, since it is smaller than the sum of its proper divisors (70657566827516).

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

64234151661340 is a wasteful number, since it uses less digits than its factorization.

64234151661340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211707583076 (or 3211707583074 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 64234151661340 in words is "sixty-four trillion, two hundred thirty-four billion, one hundred fifty-one million, six hundred sixty-one thousand, three hundred forty".