16117612573 has 4 divisors (see below), whose sum is σ = 16118945568. Its totient is φ = 16116279580.

The previous prime is 16117612571. The next prime is 16117612583. The reversal of 16117612573 is 37521671161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16117612573 - 2¹ = 16117612571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16117612571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648193 + ... + 672598.

It is an arithmetic number, because the mean of its divisors is an integer number (4029736392).

Almost surely, 2^16117612573 is an apocalyptic number.

It is an amenable number.

16117612573 is a deficient number, since it is larger than the sum of its proper divisors (1332995).

16117612573 is a wasteful number, since it uses less digits than its factorization.

16117612573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332994.

The product of its digits is 52920, while the sum is 40.

The spelling of 16117612573 in words is "sixteen billion, one hundred seventeen million, six hundred twelve thousand, five hundred seventy-three".