15677622158209 has 64 divisors (see below), whose sum is σ = 18152094836736. Its totient is φ = 13406515200000.

The previous prime is 15677622158167. The next prime is 15677622158269. The reversal of 15677622158209 is 90285122677651.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15677622158209 - 2¹³ = 15677622150017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15677622158269) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8370325897 + ... + 8370327769.

It is an arithmetic number, because the mean of its divisors is an integer number (283626481824).

Almost surely, 2^{15677622158209} is an apocalyptic number.

It is an amenable number.

15677622158209 is a deficient number, since it is larger than the sum of its proper divisors (2474472678527).

15677622158209 is a wasteful number, since it uses less digits than its factorization.

15677622158209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 15677622158209 in words is "fifteen trillion, six hundred seventy-seven billion, six hundred twenty-two million, one hundred fifty-eight thousand, two hundred nine".