10161779782751 has 4 divisors (see below), whose sum is σ = 10161810206400. Its totient is φ = 10161749359104.

The previous prime is 10161779782723. The next prime is 10161779782771. The reversal of 10161779782751 is 15728797716101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10161779782751 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 (10161779782771) 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, 14705186 + ... + 15380703.

It is an arithmetic number, because the mean of its divisors is an integer number (2540452551600).

Almost surely, 2^{10161779782751} is an apocalyptic number.

10161779782751 is a deficient number, since it is larger than the sum of its proper divisors (30423649).

10161779782751 is an equidigital number, since it uses as much as digits as its factorization.

10161779782751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30423648.

The product of its (nonzero) digits is 10372320, while the sum is 62.

The spelling of 10161779782751 in words is "ten trillion, one hundred sixty-one billion, seven hundred seventy-nine million, seven hundred eighty-two thousand, seven hundred fifty-one".