64745741146000 has 80 divisors (see below), whose sum is σ = 156564532800000. Its totient is φ = 25896752918400.

The previous prime is 64745741145971. The next prime is 64745741146003. The reversal of 64745741146000 is 64114754746.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (64745741146003) 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, 32897751 + ... + 34810249.

It is an arithmetic number, because the mean of its divisors is an integer number (1957056660000).

Almost surely, 2^{64745741146000} is an apocalyptic number.

It is an amenable number.

64745741146000 is an abundant number, since it is smaller than the sum of its proper divisors (91818791654000).

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

64745741146000 is a wasteful number, since it uses less digits than its factorization.

64745741146000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929449 (or 1929433 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 64745741146000 in words is "sixty-four trillion, seven hundred forty-five billion, seven hundred forty-one million, one hundred forty-six thousand".