10161231077 has 4 divisors (see below), whose sum is σ = 10191383436. Its totient is φ = 10131078720.

The previous prime is 10161231049. The next prime is 10161231089. The reversal of 10161231077 is 77013216101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1882778881 + 8278452196 = 43391^2 + 90986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10161231077 - 2¹⁶ = 10161165541 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 (10161231877) 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, 15075674 + ... + 15076347.

It is an arithmetic number, because the mean of its divisors is an integer number (2547845859).

Almost surely, 2^10161231077 is an apocalyptic number.

It is an amenable number.

10161231077 is a deficient number, since it is larger than the sum of its proper divisors (30152359).

10161231077 is an equidigital number, since it uses as much as digits as its factorization.

10161231077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30152358.

The product of its (nonzero) digits is 1764, while the sum is 29.

Adding to 10161231077 its reverse (77013216101), we get a palindrome (87174447178).

The spelling of 10161231077 in words is "ten billion, one hundred sixty-one million, two hundred thirty-one thousand, seventy-seven".