55500016605 has 32 divisors (see below), whose sum is σ = 97569722880. Its totient is φ = 26715497280.

The previous prime is 55500016589. The next prime is 55500016609. The reversal of 55500016605 is 50661000555.

It is not a de Polignac number, because 55500016605 - 2⁴ = 55500016589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500016609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1187007 + ... + 1232876.

It is an arithmetic number, because the mean of its divisors is an integer number (3049053840).

Almost surely, 2^55500016605 is an apocalyptic number.

55500016605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55500016605 is a deficient number, since it is larger than the sum of its proper divisors (42069706275).

55500016605 is a wasteful number, since it uses less digits than its factorization.

55500016605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420041.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 55500016605 in words is "fifty-five billion, five hundred million, sixteen thousand, six hundred five".