16000665213 has 16 divisors (see below), whose sum is σ = 23015724480. Its totient is φ = 9829244544.

The previous prime is 16000665211. The next prime is 16000665227. The reversal of 16000665213 is 31256600061.

It is not a de Polignac number, because 16000665213 - 2¹ = 16000665211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000665211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338331 + ... + 382712.

It is an arithmetic number, because the mean of its divisors is an integer number (1438482780).

Almost surely, 2^16000665213 is an apocalyptic number.

16000665213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16000665213 is a deficient number, since it is larger than the sum of its proper divisors (7015059267).

16000665213 is a wasteful number, since it uses less digits than its factorization.

16000665213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721628.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 16000665213 in words is "sixteen billion, six hundred sixty-five thousand, two hundred thirteen".