16653973787135 has 16 divisors (see below), whose sum is σ = 21037108654560. Its totient is φ = 12621652968960.

The previous prime is 16653973787123. The next prime is 16653973787137. The reversal of 16653973787135 is 53178737935661.

It is not a de Polignac number, because 16653973787135 - 2⁴ = 16653973787119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16653973787137) 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, 1850939 + ... + 6060851.

It is an arithmetic number, because the mean of its divisors is an integer number (1314819290910).

Almost surely, 2^{16653973787135} is an apocalyptic number.

16653973787135 is a deficient number, since it is larger than the sum of its proper divisors (4383134867425).

16653973787135 is a wasteful number, since it uses less digits than its factorization.

16653973787135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251578.

The product of its digits is 600112800, while the sum is 71.

The spelling of 16653973787135 in words is "sixteen trillion, six hundred fifty-three billion, nine hundred seventy-three million, seven hundred eighty-seven thousand, one hundred thirty-five".