16614640752623 has 4 divisors (see below), whose sum is σ = 16687193769240. Its totient is φ = 16542087736008.

The previous prime is 16614640752613. The next prime is 16614640752637. The reversal of 16614640752623 is 32625704641661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16614640752623 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 (16614640752613) 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, 36276507965 + ... + 36276508422.

It is an arithmetic number, because the mean of its divisors is an integer number (4171798442310).

Almost surely, 2^{16614640752623} is an apocalyptic number.

16614640752623 is a deficient number, since it is larger than the sum of its proper divisors (72553016617).

16614640752623 is an equidigital number, since it uses as much as digits as its factorization.

16614640752623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72553016616.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 16614640752623 in words is "sixteen trillion, six hundred fourteen billion, six hundred forty million, seven hundred fifty-two thousand, six hundred twenty-three".