104521541651 has 4 divisors (see below), whose sum is σ = 104529913872. Its totient is φ = 104513169432.

The previous prime is 104521541629. The next prime is 104521541659. The reversal of 104521541651 is 156145125401.

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

It is a cyclic number.

It is not a de Polignac number, because 104521541651 - 2²⁶ = 104454432787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104521541659) 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, 4167356 + ... + 4192361.

It is an arithmetic number, because the mean of its divisors is an integer number (26132478468).

Almost surely, 2^104521541651 is an apocalyptic number.

104521541651 is a deficient number, since it is larger than the sum of its proper divisors (8372221).

104521541651 is an equidigital number, since it uses as much as digits as its factorization.

104521541651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8372220.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 104521541651 in words is "one hundred four billion, five hundred twenty-one million, five hundred forty-one thousand, six hundred fifty-one".