84505653765550 has 48 divisors (see below), whose sum is σ = 157470657451632. Its totient is φ = 33739896038400.

The previous prime is 84505653765499. The next prime is 84505653765551. The reversal of 84505653765550 is 5556735650548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84505653765551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110891422 + ... + 111650878.

It is an arithmetic number, because the mean of its divisors is an integer number (3280638696909).

Almost surely, 2^{84505653765550} is an apocalyptic number.

84505653765550 is a deficient number, since it is larger than the sum of its proper divisors (72965003686082).

84505653765550 is a wasteful number, since it uses less digits than its factorization.

84505653765550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763573 (or 763568 counting only the distinct ones).

The product of its (nonzero) digits is 378000000, while the sum is 64.

The spelling of 84505653765550 in words is "eighty-four trillion, five hundred five billion, six hundred fifty-three million, seven hundred sixty-five thousand, five hundred fifty".