16510620041 has 4 divisors (see below), whose sum is σ = 16511089152. Its totient is φ = 16510150932.

The previous prime is 16510620023. The next prime is 16510620073. The reversal of 16510620041 is 14002601561.

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 16510620041 - 2³⁰ = 15436878217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16510620011) 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, 177065 + ... + 253718.

It is an arithmetic number, because the mean of its divisors is an integer number (4127772288).

Almost surely, 2^16510620041 is an apocalyptic number.

It is an amenable number.

16510620041 is a deficient number, since it is larger than the sum of its proper divisors (469111).

16510620041 is an equidigital number, since it uses as much as digits as its factorization.

16510620041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469110.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 16510620041 in words is "sixteen billion, five hundred ten million, six hundred twenty thousand, forty-one".