16512331653 has 32 divisors (see below), whose sum is σ = 25848345600. Its totient is φ = 10389102768.

The previous prime is 16512331651. The next prime is 16512331657. The reversal of 16512331653 is 35613321561.

It is not a de Polignac number, because 16512331653 - 2¹ = 16512331651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16512331651) 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, 73726 + ... + 196112.

It is an arithmetic number, because the mean of its divisors is an integer number (807760800).

Almost surely, 2^16512331653 is an apocalyptic number.

It is an amenable number.

16512331653 is a deficient number, since it is larger than the sum of its proper divisors (9336013947).

16512331653 is a wasteful number, since it uses less digits than its factorization.

16512331653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122678 (or 122672 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 16512331653 in words is "sixteen billion, five hundred twelve million, three hundred thirty-one thousand, six hundred fifty-three".