104540261621 has 16 divisors (see below), whose sum is σ = 107056857600. Its totient is φ = 102053952000.

The previous prime is 104540261591. The next prime is 104540261659. The reversal of 104540261621 is 126162045401.

It is a cyclic number.

It is not a de Polignac number, because 104540261621 - 2¹⁰ = 104540260597 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 (104540261321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14615396 + ... + 14622546.

It is an arithmetic number, because the mean of its divisors is an integer number (6691053600).

Almost surely, 2^104540261621 is an apocalyptic number.

It is an amenable number.

104540261621 is a deficient number, since it is larger than the sum of its proper divisors (2516595979).

104540261621 is a wasteful number, since it uses less digits than its factorization.

104540261621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 104540261621 in words is "one hundred four billion, five hundred forty million, two hundred sixty-one thousand, six hundred twenty-one".