16700623405 has 8 divisors (see below), whose sum is σ = 20173469184. Its totient is φ = 13272018000.

The previous prime is 16700623393. The next prime is 16700623409. The reversal of 16700623405 is 50432600761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16700623405 - 2²¹ = 16698526253 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 (16700623409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11059261 + ... + 11060770.

It is an arithmetic number, because the mean of its divisors is an integer number (2521683648).

Almost surely, 2^16700623405 is an apocalyptic number.

It is an amenable number.

16700623405 is a deficient number, since it is larger than the sum of its proper divisors (3472845779).

16700623405 is a wasteful number, since it uses less digits than its factorization.

16700623405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22120187.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 16700623405 in words is "sixteen billion, seven hundred million, six hundred twenty-three thousand, four hundred five".