6157649669 has 2 divisors, whose sum is σ = 6157649670. Its totient is φ = 6157649668.

The previous prime is 6157649653. The next prime is 6157649683. The reversal of 6157649669 is 9669467516.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6110548900 + 47100769 = 78170^2 + 6863^2 .

It is a cyclic number.

It is not a de Polignac number, because 6157649669 - 2⁴ = 6157649653 is a prime.

It is a super-2 number, since 2×6157649669² = 75833298892271619122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6157649609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078824834 + 3078824835.

It is an arithmetic number, because the mean of its divisors is an integer number (3078824835).

Almost surely, 2^6157649669 is an apocalyptic number.

It is an amenable number.

6157649669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6157649669 is an equidigital number, since it uses as much as digits as its factorization.

6157649669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 59.

The square root of 6157649669 is about 78470.6930579818. The cubic root of 6157649669 is about 1832.8981191465.

The spelling of 6157649669 in words is "six billion, one hundred fifty-seven million, six hundred forty-nine thousand, six hundred sixty-nine".