56401640105 has 8 divisors (see below), whose sum is σ = 68168889600. Its totient is φ = 44796697776.

The previous prime is 56401640039. The next prime is 56401640131. The reversal of 56401640105 is 50104610465.

56401640105 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 not a de Polignac number, because 56401640105 - 2¹⁰ = 56401639081 is a prime.

It is a super-2 number, since 2×56401640105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40576025 + ... + 40577414.

It is an arithmetic number, because the mean of its divisors is an integer number (8521111200).

Almost surely, 2^56401640105 is an apocalyptic number.

It is an amenable number.

56401640105 is a deficient number, since it is larger than the sum of its proper divisors (11767249495).

56401640105 is a wasteful number, since it uses less digits than its factorization.

56401640105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81153583.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 56401640105 in words is "fifty-six billion, four hundred one million, six hundred forty thousand, one hundred five".