10056109691 has 4 divisors (see below), whose sum is σ = 10056348000. Its totient is φ = 10055871384.

The previous prime is 10056109669. The next prime is 10056109711. The reversal of 10056109691 is 19690165001.

It is a happy number.

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 10056109691 - 2²² = 10051915387 is a prime.

It is a super-2 number, since 2×10056109691² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10056129691) 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, 36956 + ... + 146553.

It is an arithmetic number, because the mean of its divisors is an integer number (2514087000).

Almost surely, 2^10056109691 is an apocalyptic number.

10056109691 is a deficient number, since it is larger than the sum of its proper divisors (238309).

10056109691 is an equidigital number, since it uses as much as digits as its factorization.

10056109691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238308.

The product of its (nonzero) digits is 14580, while the sum is 38.

The spelling of 10056109691 in words is "ten billion, fifty-six million, one hundred nine thousand, six hundred ninety-one".