64542453653334 has 16 divisors (see below), whose sum is σ = 129144641209200. Its totient is φ = 21504195567360.

The previous prime is 64542453653299. The next prime is 64542453653351. The reversal of 64542453653334 is 43335635424546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2488898559 + ... + 2488924490.

It is an arithmetic number, because the mean of its divisors is an integer number (8071540075575).

Almost surely, 2^{64542453653334} is an apocalyptic number.

64542453653334 is an abundant number, since it is smaller than the sum of its proper divisors (64602187555866).

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

64542453653334 is a wasteful number, since it uses less digits than its factorization.

64542453653334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977825215.

The product of its digits is 186624000, while the sum is 57.

The spelling of 64542453653334 in words is "sixty-four trillion, five hundred forty-two billion, four hundred fifty-three million, six hundred fifty-three thousand, three hundred thirty-four".