10402600405661 has 8 divisors (see below), whose sum is σ = 10424856411648. Its totient is φ = 10380348748000.

The previous prime is 10402600405609. The next prime is 10402600405723. The reversal of 10402600405661 is 16650400620401.

10402600405661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10402600405661 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 (10402600405261) 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, 3725441 + ... + 5889321.

It is an arithmetic number, because the mean of its divisors is an integer number (1303107051456).

Almost surely, 2^{10402600405661} is an apocalyptic number.

It is an amenable number.

10402600405661 is a deficient number, since it is larger than the sum of its proper divisors (22256005987).

10402600405661 is an equidigital number, since it uses as much as digits as its factorization.

10402600405661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174163.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 10402600405661 in words is "ten trillion, four hundred two billion, six hundred million, four hundred five thousand, six hundred sixty-one".