16397107157 has 2 divisors, whose sum is σ = 16397107158. Its totient is φ = 16397107156.

The previous prime is 16397107147. The next prime is 16397107213. The reversal of 16397107157 is 75170179361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9890103601 + 6507003556 = 99449^2 + 80666^2 .

It is an emirp because it is prime and its reverse (75170179361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16397107157 - 2¹² = 16397103061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397107147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198553578 + 8198553579.

It is an arithmetic number, because the mean of its divisors is an integer number (8198553579).

Almost surely, 2^16397107157 is an apocalyptic number.

It is an amenable number.

16397107157 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397107157 is an equidigital number, since it uses as much as digits as its factorization.

16397107157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277830, while the sum is 47.

The spelling of 16397107157 in words is "sixteen billion, three hundred ninety-seven million, one hundred seven thousand, one hundred fifty-seven".