10154221057 has 6 divisors (see below), whose sum is σ = 10786664198. Its totient is φ = 9556913664.

The previous prime is 10154221039. The next prime is 10154221061. The reversal of 10154221057 is 75012245101.

It can be written as a sum of positive squares in 3 ways, for example, as 4523369536 + 5630851521 = 67256^2 + 75039^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10154221057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10154221157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17567568 + ... + 17568145.

Almost surely, 2^10154221057 is an apocalyptic number.

10154221057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10154221057 is a deficient number, since it is larger than the sum of its proper divisors (632443141).

10154221057 is an equidigital number, since it uses as much as digits as its factorization.

10154221057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35135747 (or 35135730 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 10154221057 its reverse (75012245101), we get a palindrome (85166466158).

The spelling of 10154221057 in words is "ten billion, one hundred fifty-four million, two hundred twenty-one thousand, fifty-seven".