16506145455 has 16 divisors (see below), whose sum is σ = 27261763584. Its totient is φ = 8519300640.

The previous prime is 16506145373. The next prime is 16506145493. The reversal of 16506145455 is 55454160561.

It is not a de Polignac number, because 16506145455 - 2⁹ = 16506144943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17748079 + ... + 17749008.

It is an arithmetic number, because the mean of its divisors is an integer number (1703860224).

Almost surely, 2^16506145455 is an apocalyptic number.

16506145455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16506145455 is a deficient number, since it is larger than the sum of its proper divisors (10755618129).

16506145455 is a wasteful number, since it uses less digits than its factorization.

16506145455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35497126.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 16506145455 in words is "sixteen billion, five hundred six million, one hundred forty-five thousand, four hundred fifty-five".