654065205653642 has 16 divisors (see below), whose sum is σ = 992921175433152. Its totient is φ = 323091503616000.

The previous prime is 654065205653603. The next prime is 654065205653659. The reversal of 654065205653642 is 246356502560456.

It is a happy 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, 52789898 + ... + 63991434.

It is an arithmetic number, because the mean of its divisors is an integer number (62057573464572).

Almost surely, 2^{654065205653642} is an apocalyptic number.

654065205653642 is a deficient number, since it is larger than the sum of its proper divisors (338855969779510).

654065205653642 is a wasteful number, since it uses less digits than its factorization.

654065205653642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11553373.

The product of its (nonzero) digits is 155520000, while the sum is 59.

The spelling of 654065205653642 in words is "six hundred fifty-four trillion, sixty-five billion, two hundred five million, six hundred fifty-three thousand, six hundred forty-two".