16516002945 has 32 divisors (see below), whose sum is σ = 30132369792. Its totient is φ = 7652662272.

The previous prime is 16516002883. The next prime is 16516002973. The reversal of 16516002945 is 54920061561.

It is not a de Polignac number, because 16516002945 - 2¹³ = 16515994753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2487787 + ... + 2494416.

It is an arithmetic number, because the mean of its divisors is an integer number (941636556).

Almost surely, 2^16516002945 is an apocalyptic number.

16516002945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16516002945 is a deficient number, since it is larger than the sum of its proper divisors (13616366847).

16516002945 is a wasteful number, since it uses less digits than its factorization.

16516002945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982241.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 16516002945 in words is "sixteen billion, five hundred sixteen million, two thousand, nine hundred forty-five".