16540669436 has 24 divisors (see below), whose sum is σ = 29004602256. Its totient is φ = 8253660800.

The previous prime is 16540669429. The next prime is 16540669471. The reversal of 16540669436 is 63496604561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7199840 + ... + 7202136.

It is an arithmetic number, because the mean of its divisors is an integer number (1208525094).

Almost surely, 2^16540669436 is an apocalyptic number.

It is an amenable number.

16540669436 is a deficient number, since it is larger than the sum of its proper divisors (12463932820).

16540669436 is a wasteful number, since it uses less digits than its factorization.

16540669436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 16540669436 in words is "sixteen billion, five hundred forty million, six hundred sixty-nine thousand, four hundred thirty-six".